Nexus woes

Hi!

So I bought a Nexus 7 a few weeks ago. I fell in love with the device, understandably. A few days in I encountered the screen separation issue on the device. I tried fixing it myself under the advice of xda posts but, no luck. So, after unrooting and re-locking, I returned the device for a replacement. I received the replacement not long after and a few hours in I was experiencing a different problem. The device kept freezing and rebooting. To add insult to injury, I STILL have the original device (after 3 phonecalls with google) as they just aren't sending me a return postage label. I don't particularly want to go through the infuriating process again in getting another replacement so have opted to return the second device for good. So here's my question. Should I wait and get another Nexus at a later date (I do love the tablet and am already tied into the android ecosystem) or do I wait until the new iPad mini is released (providing the rumour mill is correct)? I love the 7 inch form factor so would like to stay with that.

Thanks!