I need alittle help...thinking about trading up to an S

Maybe give it a bit more time, see how you feel by summer.
Summertime brings more direct sunshine for viewing your Purple Haze beauty, and drier, warmer weather for fully exploiting the performance of the Cooper, being that it needs higher revs than the S.
Here in the dread of winter my Cooper sees a lot of short shifting due to either ice/snow covered roads, or lately very bumpy roads due to warmer temperatures causing potholes and, on back roads uneven areas where melting has occurred followed by patches where snow is still accumulated, etc.
Makes for less than happy commuting - actually want it to get colder so one can keep the car clean longer than a day. With all the sand dumped here when it snows, it turns to muddy roads when temperatures rise.
The Cooper is much more fun to drive when the only wheelspin you get is what you call for, rather than annoying slippage due to winter. Once you get to use the 4 - 6K rev range there seems to be plenty of forward motion. I sometimes think about an S, but honestly feel owning one may only bring about speeding tickets.
Back to the color issue, right now dark blues are all the rage, and I admit many cars are looking very good in their various hues of blue. But I think that a saturation point has been reached with blues, and in the long run, your choice of purple may span the test of time. Hyper Blue is a good color; Indi Blue before it was even better in my opinion, but they are common sights now on MINIs. I have yet to see a Purple Haze on the road, only saw one in the showroom.
Think of it this way : you have a unique color on a still unique car - gotta love it!
Have not heard any complaints from owners of the now discontinued Silk Green and Velvet Red.