OK - i'll try.
GoPro has firstly a coolness factor that its competitors will never have. (we know all about coolness factor here at TMC). For example GoPro is already a verb, "I GoPro'd my ride today and filmed amazing footage of....". No one says or will ever say, "I Sony'd my ride today". You can't buy that kind of street cred.
More to your question AustinEV and in one paragraph, GoPro has two things; Hardware and an army of users who create amazing content. Their hardware is capitalized yet they are innovating. A new model is due out this holiday season. It will be one of the most coveted high tech stocking stuffers this season. Just like other tech companies, there will always be a faster, lighter, more feature rich version around the corner. GoPro is also innovating their accessories. For example, their new pet mount allows you to capture footage from your dog’s POV. Who woulda thunk!, and yet customers are buying these accessories and creating never been seen before vantage points. The second key to their growth is their content which has not yet been capitalized. In their IPO Prospectus they explained their vision to create a media company and to capitalize it. It will happen. There will be GoPro channels in many outlets that open advertising opportunities. For example, say you are a Mountain Biking (insert any activity) enthusiast . You will watch the latest film online. You will see sponsors fighting (bidding a-la Google ad-words) for ad space related to that activity, be it for gear, apparel, related tourism, etc. This is the monster they will unlock that will catapult the stock. When the network starts generating revenue is will be big. They will go into every niche that there are user created videos for and sponsors will show up. It will be very targeted and that is exactly what sponsors will pay for.
PS – Their CEO is at first an enthusiast and then entrepreneur. I like this, it speaks to his passion. (we too know about this at TMC) He has also recruited a solid management team.