I don't know all the ins and outs but I have to echo the sentiment that it is better to make $1 for every $0 spent than $1 for every $2 spent. The latter makes zero economic sense. Any fucking idiot can spend money and make negative ROI. But the market dissonance is being fueled by low interest capital.
We are going to see history repeat again this year and when the water goes out, we'll see who's been swimming naked. They'll be back for the next bubble.
I'm convinced these bubbles are engineered who make money from the ride up and the ride down. Pump & dump on a national level but of course the men who play Gods need not play by the same rules they enforce on lowly mortals.
You will be able to buy a used Ferrari as they depreciate fairly quickly unless they are rare. They aren't built with longevity in mind and the parts do not depreciate in prices (expect to pay a Honda s2000 for clutch and F1 paddle shift pumps).