Thought about this for 30 seconds and then decided to get on with my life.
Seriously, if you took this to its extreme you'd never actually order the damn thing. After the facelift, within two years the F45 M5 will be available, so perhaps wait for that? And so on and so on.
I ordered my car a week or so ago, specced it exactly as I want it based upon what's available now and then sat back and started looking forward to enjoying it when the day comes.
Can't deny the new iDrive thingy would be nice, but heyho