I second the OP’s idea. I feel that the modular laptop lends itself to Framework recruiting an automotive style dealership network where the laptops can be tried, purchased, repaired (with key spare parts always in stock) and upgraded. The Framework owner would have peace of mind that even when travelling away and their computer breaks, they can go into a local computer store and get their laptop fixed that day by qualified staff.
I would argue the exact opposite and feel the best dealerships might be the smaller hands-on independent computer stores (what I think you Americans call “Mom and Pop” businesses). In other words precisely the sort of “traditional retail” you are dismissive of! Small businesses are the lifeblood of any local economy, and working with them them would be in keeping with sustainability objectives Framework sets itself.