Do you like the color? Keep it.
Are you on the fence? Not really sure if you like it or would be happier with something else. Consider the change and the cost factor of a full color change. Is it worth it to you.
Do you despise the color and want to spray paint your car and gouge your eyes out whenever you see it? **** the cost, change it.
MP Has the right idea... a full color change is not cheap... to take it to a shop and have it done will probably start at 2500 , 3000 and go up from there depending on the quality of paint and the color and amount of repair that needs to be done... and it is time ocnsuming if you are going to do it yourself... (I just did one... ) there is a lot of disassembily involved removing the bumpers, doors, hood, decklid, wing, hinges, rocker mouldings, side scoops, taking the doors, hood, trunk, bumpers apart... the list is endless... then when you have that much work into it you wanna do some small changes, shave an antenna, body color morrors, etc... Not trying to say it is not worth it... oh belive me when I say it is... it is just a lot of work involved to get a good looking product. (Not to mention having to pull the engine to get the engine bay... havn't gotten that far yet....) the main thing that I did that makes me happy is that we removed all of the dried up cracking seam sealer and redid it all... Hope this helps...