Thanks for the pointers on apartments, Jeff. My wheels are turning...
Nicely said, plainpainter: "That's the difference between a 'technician' {someone who knows how to do the job} and a businessman {someone who knows how to market the job for loads more money}"
It's always a marketing issue!
I charge $149 min for gutter cleaning in Vancouver WA, and then assess - like most of you - based on roof pitch and safety. I just got beat by a guy quoting $50 on a 2500 sf two story. I guess I'll do an $1800 deck job instead :)