I can't believe how many of those terrible cardboard boxes we actually have covers for now. 
Yeah, I don't even both with the other games. If the game was originally released in the clamshell, I always make sure to buy it in one. If it came in cardboard, I don't even worry about it. I take a UGC cover from here and resize it to clamshell size and use that in an original Sega clamshell. The shelf looks MUCH cleaner that way.
Also,
@irvgotti... Seriously. Both of the Vectorman covers.... SOOOOOO SEX. Might I ask you something? For Vectorman 1, did you find some edition of the box that didn't have that "Win $10,000" golden ticket on the front, or did you completely rebuild everything under that ticket by yourself? Either way, you did an incredible job.