Apple TV or HDMI ipad?

[gadget123]

What's best for me?

I have Ipad 3 so an HDMI video sender is pointless now it's moved to lightning and I'd probably get Ipad 5.

I don't want to keep buying new Apple tv's every year just looking for a way to watch my Itunes content..very little room left on Ipad.

So is it worth it? I occasionally rent the odd movie via Itunes for Ipad so maybe movie rental would be handy too.

Photos/music not really interested in too much.