I can personally vouch for the FrSky systems too. I know that me being younger and more adept at these sorts of things does perhaps bias my opinion slightly, but I really did find my X9D unbelievably easy to set up. For example, I cannot begin to work any of the similar systems from Futaba, Speaktrum, etc without consulting a manual first. The other advantage to the FrSky system is that it can be as complex as you want to make it.
Price is also a large factor as you say, and by way of comparison, a brand new QX7 is only £103 as opposed to a second hand 7C for potentially £90. Even a very