I found this one yesterday too, though it's not a quad, but a glider. May as well post it.
Space Glider - FPV to Space and Back!. Beats the model rockets I built as a teen hehe. Looked into it, damn FAA. Being UHF, looks like a HAM license is needed in the US, technical class.
As for buying a drone, other than building racers, I like this one the best:
Busted Wallet Review - Yuneec Typhoon Q500 4K. There are mainly two models among the top sellers in this class (large camera drones), with a third being close. But lots of vids comparing this vs the DJI Phantom 3. But the Q500 is a lot quieter, has a built in tablet display which means no/less computer crashes as the other has (not a critical failure), and it's a slower flight speed but much smoother. I see a lot of good vids made with it.
The phantom is pretty aggressive though, and the 4K camera is about the same, though the Q500 you can detach and use as a regular handheld cam which I'm about in the market for to upgrade from my current cam an older canon eos. Though if chasing something fast, like a flock of birds, or water skiers, the phantom would probably do that better.