Should i sell my ps3?

I recently just saved up and traded in a shitload of xbox games in order to buy a ps3. I only got it because i wanted to get DC Universe Online which hasn't impressed me much. Ps3 hasnt really impressed me at all, the fact the station went down and stayed down for 3 months is pathetic. Im only considering keeping it because of exclusives. like uncharted little big planet god of war etc. but if i sell it how much would i be able to get? and is it worth keeping???