Maybe. Or maybe the idea of having this great product and launching it puts you too far from your customer. My route was to build a MMVP, get one person to pay

Maybe. Or maybe the idea of having this great product and launching it puts you too far from your customer. My route was to build a MMVP, get one person to pay for it, and iterate over and over adding more paying customer. There was no magic launch day, just a few more paying customers every day/week/month. There was no marketing for the first year outside of happy customers telling their friends. This was obviously easier as B2B. It would be harder to do a marketplace or something this way...