Personally I don't think those are bad deals at all. Arc the Lad and Lunar aren't really dropping in value and Dynasty Warriors is too much fun to pass up! Have fun!
Excellent deals man. The prices that you paid are more than the average CAG pays for his games, but considering the games you got, you did great. Especially for Arc the Lad which I have been trying to find complete for a while.
I blew nearly $100 last night - $59.99 for a used copy of Suikoden II at GameStop (disc only, no case or booklet) and another $19.99 for RE Online used. Threw in a GameStop membership card for good measure since the store manager was being cool and all...