video game collection; quality or quantity?

i know this is a little off topic, considering this is a transformers forum, but i hit a snag with my video game collection. all of the other good games, are crazy rare and cost a fortune. im at a crossroads. do I keep saving 100+ dollars to buy the rare, playable games, or do I just splurge thirty dollars every now and then and get a TON of crappy games? If any of you guys could help, I would really appreciate it. I just figured that since you guys collect transformers, you might be able to give some tips for my collection.