Pretty solid look at the problems with building products for specific audiences. It's almost like you have to put up the fence, let the kids play, and see what world they carve out.
Lot of variables here. Assuming you've already vetted that its a great business idea (talked to vc's, peers in the space, domain experience, etc) and that you have the skills and potential team in place to make it work, fucking go for it. Make sure you are passionate about it and make sure you're comfortable raising your daily resting heartrate by about 10 bpm. A bit of my own path follows: http://www.warandtheentrepreneur.com/uncategorized/stop-bash...