@silverwizard I sell products ready-assembled, and do-it-yourself kits for building the same products. Some of my customers buy the kits because they really like building kits, and that's great.
But others buy the kits because they think they're entitled to the finished product at a lower price, and they begrudge every second of effort they must put into building the kit. Those people really exist and they are the market for tools that purport to save "the value of your time."