Well, sky's the limit, there's a whole world out there for sale. I'll take a megayacht parked in Monaco bay and 6 Euro supermodel junkies on muh dick.
Being a bit more realistic, I'd really like to build a maxed-out simracing rig ... high-end PC, cockpit with actual dashboard, steering wheel, pedals, shifter, VR headset plus multimonitor display, motion/vibration motors for the seat, etc etc etc. The whole shebang, total immersion, ultimate simulation.
I could buy all that, at the expense of all other hobbies and this years' family vacation. But if I actually USED it, i.e. racing online for hours a day, it would also be at the expense of my job and marriage. That I can't afford.