Thanks for your insights. I like the "how disappointed would you be" approach since it's a question users can easily answer that conveys actionable information.

Thanks for your insights. I like the "how disappointed would you be" approach since it's a question users can easily answer that conveys actionable information. Incidentally, I just ordered the "Entrepreneur’s Guide to Customer Development" that I found through HN, and quite a few people on here endorsed. If anyone's interested, I'll share the results of reading/applying that book.