Unlike you I haven't had too much bad experiences with ebay, Ive had an HTC Wildfire since start of 2011 (I know its not the best but hey it was all i needed) till recently where the touch screen and lcd acted up, Ive had the digitiser replaced 2x before once by myself and by htc (after having to send to HK as htc aus wont touch it - that was a pain) after my screen started working i realised my touch was acting up too. I've orderd both parts to use it as a spare.
I was planning to buy a phone called the Xiaomi 2, a chinese one, similar to the nexus, a bit fatter, very popular in china. However there market plan is sell 50k units, wait to weeks 250k units etc. They are making a loss on it to wash out competition, well after waiting awhile to get a hand on it, i was on the FB page and someone commented "Xiaomi anounced this too early and failed to release... six months later they finally have and now all the 2gb ram phones appear so its not the only one. Might as well get the nexus 4" So i thought i might as well check out this thing called the nexus 4 and hello it was good.
I then noticed the 250k units is expected to be released mid nov, maybe then ill have a chance of getting it same time nexus is going on the market. So i changed my mind to go with nexus as its thinner, same ram, might lack an sd card but hey it would be easier to repair if i damage it being from a bigger company that isn't exclusive to china. I know its a long story but that is how i came along the nexus and why i am getting it.
We already have one of these threads.