Just yesterday I chewed through a (pretty good) idea for a modern review-oriented site for gear-centric hobbies. As a guitarist and photographer, I read a lot of gear reviews, and the sites that provide them are often horrible to use - 2002-vintage antiques, or ugly and unnavigable, or both. But the hobbyists have well-used forums (awful ones), enough to make a living for some small time businesses.
So the other night, I was researching Japanese kitchen knives, as I'm planning to get my daughter some for Christmas, and butted into the same problem. And I thought, "Wouldn't it be great if someone built a really modern review app and built hobby gear review sites with it?"
I spent a couple of hours poring over the financial model for such a business, and decided it was a bad idea. Running on ad support and waiting for the content to build would be a slow, painful time with a fairly low income ceiling.
But hey, want an idea? There's one. Run with it!
The challenges that exist with developing products for "everyone else" are nothing short of daunting. For one, anything that comes with high cost and high functionality will most likely intimidate the average consumer.
Much easier to develop for those who are more savvy than your average Joe blow who doesn't wish invest the time nor money while adopting a new product. Even with all that being said, I do believe there needs to be more of push to cater to those who aren't as sophisticated.