To be upfront, I haven't been on Lukiegames in, like, 2 years. But they were SO over priced. Hopefully they've gotten better. They were selling Mario 3 for like $25. So if you go by them, then anything you find in the wild will likely be cheaper.
Pricecharting is great if you have no clue what something goes for. The ap is helpful if you come across a title and really have no real reference whether the store price is good or not. From my own experiences, the price is on the money give or take a few dollars. There's one place by me that uses that ap to price their games at trade in.
It's also good to keep in mind that prices fluctuate all the time. Depending how long something sits on a shelf, it could be way lower (or higher) than a current online going rate.
I was in a store the other day and saw .Hack GU Rebirth for $45 CIB. It's in a VERY crowded and clustered PS2 section. PC has it going for about $20ish. However I frequent this store a lot and know that it has been on that shelf for a long time. Back in 2017/2018ish, it DID go for a hefty amount. But since it's re-release on PS4, price has dropped. So unless a store updates pricing regularly, stuff is priced the day it goes on the shelf.
