[Epiplatys]

Everyone's different. I personally can afford a M760, but I can't afford the dealership repair costs. Nor do I want to afford those costs. Consider this: if you keep your car for longer period of time your overall cost of ownership is actually pretty reasonable. Even an expensive car ends up costing you less than picking new cars every few years. I'm not saying this is the way to do it, but nonetheless.
I'll illustrate the point: I owned a Lexus LX470 (Toyota LandCruiser elsewhere) for 22 years, put 460,000km on it. I spend zero on repairs, and the required minimum on maintenance and wear items. I kept track on all expenses. Averaged over the 22 years my cost of ownership ended up half of a Honda Civic if it gets replaced every 5 years.
Now, M760 is not a Toyota LandCruiser, but you can see which qualities I am looking for. Ignoring or overlooking running costs is not one of them.