Yeah, LTE is poorly deployed in most parts of the world, maybe next year there will be more coverage.LTE is 'latest/greatest' fodder for the addicts.
I'll consider LTE when its available in more than a handful of places.
In addition, I find 3G perfectly acceptable for the uses I put it to.
But that's obviously just me.
It would make more sense putting HSPA+ in the next-generation iPhone. HSPA+ is widely deployed across the globe, and some of the third-generation networks have a theoretical maximum speed of 84Mbps, faster than current LTE networks anyhow.