lamarca mentions "the curse of the "One-Hit Wonder" mentality in audiences...folks with a short attention span can only remember you for just one thing."

Truer words were never typed! What bothers me is that radio stations cater to that mentality (and thereby perpetuate it) – not just the oldies stations that Celtic Soul mentioned, and other commercial stations, but the publicly-funded "community" stations as well. Case in point: there's a folk show on a Philadelphia PA radio station on Sundays, and when the host announces that he's about to play a song by the Austin Lounge Lizards, I know that there's an almost 100% chance that it'll be "Old Blevins".