Pre-orders are always great for testing demand, eliciting end-user feedback and even generating a little revenue! You just have to be sure that you can fulfill whatever product or service the customer is paying for, beta or otherwise. Relative to b2b vs. b2c, I can't really speak to that based on...
I recently started my own fitness based company, tailored to athletes, and I've been an athlete in organized sport for 14 years. It really depends on what you're looking to work on. For example, if you want to gain mass, you're going to need access to weights. If you're strictly looking to do ca...