Wow, that's tough! Sounds like with your current clientele the drop-off is more ideal so you don't spend precious revenue on labor, and it takes less of your time. Can you try marketing your onsite services to the country club crowd? I find that sometimes if you increase the prices, it opens up a new market of people that want the product, but don't want to be seen as "cheap". Same concept as a grocery store charging more for the same product in a "higher end" neighborhood.
Meadow Creek TS-250, BQ Grills Pig Cooker, Weber WSM 22.5"