Here I see somebody building a real SL rental business lol.

That's the plan.
Imagine being able to live of your rental income and not having to work for a living?

I don't know how long this playtoearn bubble will last or whether it can get even bigger from here but splinterlands is going nowhere anytime soon so even if prices drop. There is still huge potential to be had from renting cards and getting even more of them.

Especially the rare alpha beta ones that have very limited supply. Rare is good.