Some people like to pay extra so they don't have to spend free time to tinker. Look at the pages you listed and all the research you have to do to vet these options.

When I was younger and had more free time, I would tinker, too, content with my saving $20 there or $200 here, ignoring that the savings were a wash considering the time involved to find these discounts. These days sometimes I just pay extra knowing I'm not getting the best deal, but I'm getting something that works out of the box without me fiddling or having to spend my precious free time outside of work reading about the exciting exercise bike industry of all things.