I've never been much of a collector, although inscriptions tempt me more than pokemon cards, so who knows!
One of the reasons why I did this whole thing was so that I could make my own generative art inscriptions. I've made a bit of generative art (a bunch of random examples are on my home page) and as generative art became popular on Ethereum, I looked into making my own Ethereum NFTs. Ultimately, I didn't feel like I could make and sell Ethereum NFTs in good conscious. Everything in that ecosystem is so bad, from the fundamental chain security and decentralization, down to the tooling and NFT standards, so I had to make my own. So I'll definitely be making my own inscriptions and trying to sell them. It'll be fun to transition from working-on-ordinals goblin mode to actually-making-inscriptions goblin mode.
I want to keep everything decentralized, so a lot of business models in the broader NFT ecosystem won't work. Opensea is essentially a custodian. When you sell an NFT on Opensea, it doesn't leave your wallet, but you give them permission on-chain to transfer your NFTs on your behalf, so they can effect sales and transfers. I wouldn't want to introduce that kind of centralization, so I'm going to try to implement decentralized non-custodial offers to buy and sell. (See here for a sketch of how it would work, it's pretty simple.)
I might have some kind of gallery of highlighted inscriptions for sale on ordinals.com, and maybe you could pay via lightning to have your offer higher up, but that's about it.