...because I seem to have four broken spokes.
Bike came with Alex DM-18 rims, 36 spokes. After 1100 miles, it got a free adjustment from the bike store and they trued the wheels because it wasn't quite right. I felt that it was riding a little funny, checked, found that the wheels were out of true again, and took it to another store with a real wheelsmith.
We start out where he tells me that yes, the wheel really is out of true, the rear one in both axes. And no, it's really not normal for a wheel to require that much re-truing. Even if it's been used to hop off curbs and ride on rough pavement.
Eventually he checks the spoke tension with his fingers for the rear wheel and finds that four of the spokes had broken at the hub. Blames the previous bike store for truing the wheel too heavily and getting the spokes way out of tension by doing so and likely that the wheels just weren't made that well to begin with.
So, clearly the quality of the wheel's construction and tensioning is important, given that it's a fairly heavy 36-spoke wheel already. Thus I am having the bike store to build me a new rear wheel around a set of Sun Rhyno Lite rims and the existing hub.
Still pondering the front, if I want to learn about wheelsmithing and do it myself or if I just want to have them do the front wheel as well.