I absolutely love sprint blue but can understand that it might be a bit too flashy for some. I think that white seems to command the biggest premium.
Mine is mugello blue. An understated color for sure but not as exciting.
I think I was a bit too harsh on the prices I stated earlier. If both are '08s, my opinion is that $37.5K or so is the ceiling for the car that requires no work and like $36K for the car that needs brakes. With warranty of some sort, maybe $500-$750 more unless we are talking CPO. And of course, people will ask more than that so what I am referring to is what I think would be a fair price to pay.
The best thing to do is to try and see what recent auction prices are for similar cars. Perhaps even the ones you are looking at will show up. Add $1500 for various fees and then a couple grand for dealer profit and that should be your target price IMO.