Just unboxed 3 PS4 controller from eBay. Was very excited that they were genuine. But alas.. few mins of online check about detecting regarding fake vs real.
These Chinese sellers have mastered the art of deception.. the package came from turkey :/
Anyway some guys are of opinion it's worth if you get them for cheap.
Be warned.. it's a hit / miss regarding the quality of them. Recharging them frequently as the batteries are lame . I would suggest get genuine controllers.
Your investment depends on what sort of gaming you looking for.
Just some Android TV games.. or console emulation games or perhaps even steam link games on Android TV.
Redgear pro wireless gamepad