I think it depends on how you look at things. The Cooper frame, if in good shape, is worth nearly as much as the price of the Felt and will keep its value and probably appreciate in the coming years. The Felt will be worth less then the Cooper the first time you ride it and will continue to lose value for the foreseeable future.

The Felt is a mass produced, made in Taiwan bike while the Cooper is a hand built bike. If these are things that don't matter to you, choose the Felt. If you are someone who values craftsmanship and long term value, choose the Cooper.