If what you bought is 100K worth right now, why don't you sell it. I know it is possible on OpenSea to sell the "art" and get it in
ether somehow?
Yes, you're right, OpenSea mostly seems to use ETH. Some sellers use wrapped ETH (WETH). There's options for a few more currencies. I really dislike ETH and the whole gas ecosystem, but the idea of smart contracts and the like has many new possibilities. Let's see if Cardano gets more traction.
I should say my collection is "worth" $100k. Because if you consider that I have five copies of the NFT at $15k each plus an limited edition original autographed artwork, maybe somehow as a package deal it might be worth something in that ballpark. BUT---I don't know if anyone would actually pay for it. And if nobody pays for it, then it's only "worth" whatever somebody pays for it. On that note, I've seen some boneheads pay 5-10 ETH (at recent fiat xrates) for what to me seems like the dumbest NFTs, ones that are now selling for less than 0.01 ETH and aren't nearly as limited in mintage as mine of 10 copies. Maybe they know something I don't?
Anyway, to continue with the point. There is actually supposedly the possibility to write ETH contracts so you can transfer ownership of art IRL (or other tangible goods) along with the NFT. You can even add yourself a percentage commission every time the contract is sold, which is an interesting possibility for residual income, especially for whoever distributes the next Picasso/Van Gogh. So, definitely an interesting sector for the future.
You're right, perhaps I should consider investigating the possibility of writing a contract to sell the group NFT and artwork. Now, do I prefer $100k cash equivalent, or my sentimental art piece everybody talks about over dinner and drinks? haha that's a tough one, especially now that I can brag about having five NFTs.