it will basically all depend if you wanna have your car for the long term, or if it is going to be the case in a few years you are bored of it and cant stand it no more then there is obviously no point in shelling out loads of money on a re-spray..
at the end of the day it is really your decision and the only thing that should really be your decided is..will you be keeping it for ages, a respray will def be worth the money if you keep the car, for say another 8-10 years.