I think folks may ask that question for a number of reasons other than meddling. Perhaps they've always considered the hobby but honestly have no idea what our toys cost. When asked, I respond with the average cost of an electronic engine vs. conventional and the average price of a high end and low end car. They can generally figure the rest out on their own. I do usually see a lot of dropped jaws and bugged eyes. I do like the "Cheaper than therapy" line, think I'll try that one out!
Stack