The fact that you have a nice bike. I don't see why not ride it and get used to it and enjoy it for as long as possible. Seems kinda foolish to switch like constantly.
Wait, so you try to turn a profit from these? That doesn't make sense, Its like when you drive a car off the lot it loses value... Why not just save up money for a truck? Or invest in better things?
Surprising i make pretty good profit off them. When i started i had 1300 im up to about 8000 now. I normally buy bikes that are cheap that i see potential in. Then upgrade them and sell for a profit. Ha plus i enjoy trying out new frames and stuff