Why not set up a simple derivative based purchasing method, whereby customers can purchase the right to buy at a particular price in the future should they choose to do so
Then such rights could go on sale too, or be bought and sold 2nd hand.
Then you could buy rights to buy rights to buy and so on.
Then people will forget what it was they were buying the right to buy in the first place and you’ll be able to stop making frames altogether and just sit back and become billionaires.
And don’t tell me, once you’ve set up this derivative marketplace, spent years building out the infrastructure to facilitate ever-easier trading, co-authored many papers on novel new machine learning algorithms to spot and exploit imbalances in the market, and so on…
You can of course retire!
And go do whatever you want with your hard-earned billions. Indulge your hobbies. Maybe set up a little frame-building thing in the shed, you know, just small scale, knock out a few steel frames for simple bikes for riding on sort of thing.