So EVERY game has PLAY value, how much you enjoy playing this game determines this value. If you don't like the game, there could be multiple reasons why, but essentially you establish this immediately.. Don't like shooters? Cool, they have very little PLAY value for you, meaning they are likely to sit on the shelf. But you LOVE RPGs! Can't get enough! RPG games will have a higher PLAY value for you. PLAY value is essentially how likely you are to FREQUENTLY play a game.
Now, if a game has a high PLAY value for you that's very good! We now need to establish the REPLAY or PLAYTHROUGH value. A game could have a low PLAY value for you, but have a high REPLAY or PLAYTHROUGH value.
Minesweeper, I don't LOVE it, but I love to WIN it. This has a PLAYTHROUGH value.
I don't want to beat Galaga, but I play it OVER and OVER again. This has REPLAY value.
REPLAY value and PLAYTHROUGH value I think are different things.. I think REPLAY value (starting over) is higher in some games that have NO save feature. PLAYTHROUGH value comes in from games that have a longer story, multiple storylines, or time to complete, but typically have save points.. There are games with a mix of PLAYTHROUGH and REPLAY value, but to keep this simple ----
REPLAY = Starting a NEW GAME
PLAYTHROUGH = Playing through and entire game (TYPICALLY HAS PROGRESSION SAVE FEATURE)
To illustrate this, I'm going to compare two similar games, one with a Save feature, and one without..
Super Mario Brothers 3 vs. Super Mario World
I love both games, but they give me a different experience, while having basically the same core gameplay.
First, SMB3 TOTALLY could have had a save feature, the very next game (Super Mario World) did.. I mean look at the VAST 8 worlds that lay before you if you were to just PLAY. Its crazy! Hence the "Flutes/Whistles" warp zone. When I fire it up and beat those first couple of worlds, then get the flutes I can whisk myself off to ANY of the worlds to play. I turn the system off, or lose too many lives, it's game over.. I'm done, start over!! I must possess skills and mastery of the game to traverse these levels every time I choose to play. This is REPLAY value.
Now Super Mario World.. I have 3 different save slots, of which I only use 1 anyway. I fire up the game, I select my save, then I try my hand at the next level in my path. If I die too many times, I just don't save.. Or.. I die.. and I KEEP ALL MY PROGRESS ANYWAY? I am just picking up where I left off each time.. I can play through at my leisure, with no penalty.. So I play in short bursts, and it sits.. I beat the game, I don't start a new one.. I start try to find secrets or new paths.. And that can get old.. fast. especially since once you find it.. that's it.. it's saved.. you can forget about it again until you want to play through the WHOLE game again. I do not need to possess mastery of any level longer than it takes me to pass it once, as my progression is saved and I do not need to return to this level again. This is PLAYTHROUGH value.
I am less drawn to play SMW.. PURELY because of the save feature, it reduced my REPLAY value. In SMB3 my play through is limited. I feel like I'm honing a skill that I can use to play the game more efficiently each time. With SMW I'm missing that sense of "Oh crap, If I screw this up I am going to LOSE!", or "Oh Crap! if I don't get this mushroom I'm going to die in the next area."
If I said "I beat Super Mario Bros. 3 on my NES! NO GAME GENIE!" You would likely get a positive response from most gamers. Achieving this task takes SKILL and/or MASTERY of the game to finish it each time you turn it on.
If I said "I beat Super Mario World!" You would likely get a more passive response, as it does not take MASTERY to achieve this task, just time.
If I said "I beat Super Mario World, without saving and no continues in less than 1 hour!" You would likely get the more positive response, as this would take SKILL and/or MASTERY of the game to achieve.
So this brings me to what has good value... Depending on what you prefer, or have time for, you may be looking for a game that has REPLAY value. Or you may be looking for a game that has PLAYTHROUGH value, but ideally a little of both.
For me most Genre's have these as follows..
ARCADE - REPLAY VALUE
ARCADE on FREE PLAY - PLAYTHROUGH VALUE
RPG - PLAYTHROUGH VALUE
RPG w/ CHANGING STORY - REPLAY & PLAYTHROUGH VALUE
RPG w/ MULTI-ENDING - REPLAY & PLAYTHROUGH VALUE
FPS STORY - PLAYTHROUGH VALUE
FPS MULTIPLAYER - REPLAY VALUE
PLATFORMER - NO SAVE = REPLAY VALUE
PLATFORMER - W/ SAVE = PLAYTHROUGH VALUE