You do realize that you can play a machine without actually owning it right?
Why not self evaluate a machine and figure out if you want to own one or not after playing to 20-30 times before actually buying it?
I understand not being able to FIND a title you want to try out (if very remote or not in a league,ect.) but if you network, use the pin map, or just ask around in your local pinball group, it certainly has to be easier to find a machine to PLAY instead of finding a machine to OWN.
Especially now that most places that survived the shutdowns are back open again... trust me, pinball is STILL a lot more accessible than it was 20 years ago. Back then, you ONLY saw machines in collections or at shows.
I've literally had strangers PM me on Pinsdie and ask to play a specific game at my house and after playing it for a couple hours, they knew one way or another. Seems a lot easier than having $ tied up in machines and then tracking the machines down, paying to have them shipped or, paying for the gas to pick them up, just to decide if they are "keepers"!
I honestly think a lot of people use the term "keeper" to describes a game that they will "keep" just until they find something "better".