I’ll be in the market for a single story. A 2 story is a pain, hauling stuff up and down the stairs sucks. Hauling myself up and down the stairs sucks. However, I would buy a 2 story if the master bedroom was on the first floor. Having the kids and all their crap upstairs would be great. My kids are older so no worries about them being upstairs alone. It’s also much easier to keep a single story home comfortable as far as temperature goes.