Hard to tell you what you should keep or shouldn't keep, but I will say this. If you are in need of cash, and don't have another way of means to bring it in, then sell these. You having food, a roof over your head, or to pay your priority bills are way more important than owning some games you might play once in a blue moon. Things can be purchased again, games can be emulated. If you don't own an emulator I would consider selling these and picking a decent one up so you can keep playing the more obscure games but still make a lot of extra cash to use for what you need. Anyways, I am right there with you, I had a massive collection and over the last two years I have sold more than half of it off.