Coincidentally, I have been working less (hacking away at the inessential) by being way more selective in implementing features, experimenting way too much with pricing, and toning down my marketing (which basically consists on participating on forums and publishing blog articles). I was feeling burnt out and simply wanted to enjoy the fruits of my labor a little more, sometimes barely working an hour a day.
How would you advise me to proceed? Sell the business, ask customers why they cancel (most of them are just unavoidable -- e.g. "We're looking to only launch next month.", "We will look into your solution again.", etc. -- not switching to competitors), keep improving the product, ramp up marketing?