One of the coolest things you can do with an RC aircraft is being able to take aerial photography or video from higher altitudes – I’m not talking about 1000s of feet in the air here, okay – but a manageable height up to the legal and physical limitations of the aircraft and your capability.
The next coolest thing is being able to actual see what it is you’re taking pictures or video of. And you accomplish that with the addition of first person visual equipment.
Of course the other added benefit is you get to see what the aircraft is seeing firsthand from the pilot’s seat so to speak.
And as with most things in this hobby there are multiple ways to achieve the FPV goal and each way is fraught with confusing terminology, equipment, prices and weeks of reading to get up to speed.
I’ve gone the cheap route with little success. Then retried it going the expensive route with great success. Take a look at the posts for Cheap and Expensive to get an idea of what you’re getting yourself into.