That could be a factor, other than you can spend your money incrementally on upgrades over time.
Also, I doubt that you'd leave an M3 stock too, so you'd have to factor in how much cash you'd drop on mods there. And I'm sure there is the "M3 tax" for those mods.....
2010 E70 X5 35d
Alpine White on Black with Dark Bamboo trim
ZAP | ZCW | ZPP | ZPS | ZRC | ZTP | 322 | 328 | 330 | 386 | 4AZ | 4UB | 655 | 6FL | 6NF
2008 Ducati 1098S Red naturally....