Really getting tempted to buy one when I win the lottery someday. I could afford it now, but I want to win the lottery so I can pay someone who knows how to play it

All I know about it is how it's tuned.
The lowest note is in the middle.
As you go upward to the top of the neck it's tuned in perfect 5ths. Going downward it's 4th, so the scale shapes resemble guitar.
That's the extent of my knowledge.

They're hard to find used, and when they come up they're always 2 grand or more, used.
I saw one that 10 years old and had a serial number in the 1400s. So, they don't make many.
Their biggest distributor has nothing in stock so everything has to be custom ordered.

Here's a song by the guy who invented it. Others have taken the technique further than he did.

I've never looked at new ones, but used are $2k or higher.