[Nexus 4 Q&A, Help & Troubleshooting] Pragmata:
You make great points and I definitely understand where you are coming from, I would still argue that the speeds HSPA+ provides are more than enough for at least the next year and whether your carrier supports that or not is more on them and less on the manufacturer.

That said, I do have a couple follow-ups cause I think you raised some good points and I'm interested in getting your thoughts.

A) At (max) 350$, do you feel that you really wouldn't be opposed to upgrading in a years time when there could potentially be a new Nexus with LTE? For me 350$ is a steal when I regularly buy a new phone every year for 600+. I know not everyone upgrades on a yearly cadence, but if present and future Nexi were priced around that point, I think it might be something more widely adopted. Perhaps this isn't meant to be a "long-term" phone? Obivously the base argument is that you would want something to last, but if it's affordable why not speed up the upgrade cycle?

B) If we disregard carrier failings and just pit HSPA+ against LTE, I don't see how HSPA+ would be such a deprecated technology that it will be irrelevant within 2 years. Sure, LTE will be bigger and better by then with more coverage, but by no means is HSPA+ something to scoff at. A potential 42Mbps on your phone EASILY gives you all the Cloud throughput you need. I had a 50Mbps residential line for my home internet before upgrading to 100Mbps and I can tell you thinks moved seamlessly. 42Mbps is hardly something that won't let you push and pull content on the Cloud. So you might say that you don't get nearly that on X's network, but that isn't reflective of the technology itself. Maybe X just needs to improve their HSPA+ networks while working on LTE.

I kind of see it like the CPU progress on desktop computers. HSPA+ represents a Dual Core/Quad Core CPU that can be clocked at 4Ghz. Even in mainstream computing today most games/apps/programs barely take advantage of a full optimized Dual Core high clock CPU, yet manufacturers are pushing out Hexa- and even Octo-Core CPU's at low clock rates. Those are like LTE. It's going to be a WHILE before we can properly use 16 threads and 4Ghz of speed on a CPU. And just because those CPU's exist, doesn't mean someone should not buy a Dual/Quad Core CPU. Sure, you can't add more cores to it so it's not "future-proof", but we don't even take full advantage of it yet...

C) I'm still curious at what LTE users like yourself are pushing that you feel pressured in the near future that HSPA+ won't provide (again disregarding shortcomings of providers). Myself, I don't do any media use on my phone so I'm obviously the opposite, but even imagining if I was streaming video and pushing lots of media, I can't forsee the need for a connection faster than what I have to my home. The only possible thing I was able to think of is someone with an unlimited data plan (doesn't exist in Canada) that uses their cell connection as their internet connection and tether their computer through it 100% of the time. Just pure curiosity as per what LTE people push.

I suppose most of this all comes down to the provider limitations and as such necessity for LTE, but I'd be more upset at my provider than the manufacturer. Google has built a worldwide product that can reach amazing speeds on HSPA+ networks. I know America is a powerhouse, but you aren't the be-all-end-all in deciding how a phone should be made. LTE has a lot of reach in Canada on all major providers, but they all also have HSPA+ with great coverage. Only people on smaller or piggyback providers are losing out on LTE, but everyone has HSPA. Maybe the American providers should stop fighting with each other over proprietary LTE spectrums. :P

If you are hankering for a new phone and don't want this, I'd probably say the Razr Maxx or One X+. Those are my runner ups (Once they finally hit Canadian borders) Since you are on these forums I'll disregard suggesting the locked bootloader Optimus G.