I know a little about bikes, but not a lot.
I've had the Evo for a couple of years. I think I've spent $180 on it for the bike and a new wheel with the original purchase being from Goodwill. Don't really need a full suspension bike and even feel like it hurts me when trying to climb out of some washes on the trails I ride.
Picked up the Specialized from a garage sale last week for $80, but it has a cracked fork. I ordered a used version of the same one from Ebay a couple of days ago. I'll have $120 in it total.
Retail on the K2 was $1000 in 2000, the Specialized was $600 in 2004. So which would you keep - the 12 year old K2 or the 8 year old Specialized?