Recently I pulled the trigger and purchased a more road-ish bike, a Trek 7.3 FX. So far, very amazingly happy with it. It's fast fast fast, rides nicely, and is great as a commuter. However, one thing I'm not so happy with is the wheelset. I don't know if it's my gigantic butt, or if it's just a matter of "these things happen" but I'm starting to get annoyed at them.
On the rear wheel it seems there are always one or two spokes coming loose. Let's just say that the spoke wrench was an EXCELLENT investment, I've been getting quite a bit of use out of it, and figuring out how tight I can go before being "too tight" and throwing the wheel out of true.
Anyway, how often should I expect to be doing this? The bike is barely at 100 miles yet, and it seems I've tightened spokes three or four times. On my MTB, I've never touched one of them, and put it through the ringer for 700 + miles.