You own the token. The NFT.
I can sell you (and a dozen other people) a photo of the deed to my house, and it's very nice that you own this photo, but I don't understand why you would pay me real dollars to buy it.
Unless your plan consists of selling it to a bigger fool.
Edit: Missed to not. I assume it still was clear
And now multiply this for all the chains you want to use/support... And with BTC you aren't even paid for this service...