I don't lust for smartphones as I used to. My very first smartphone was an iPhone 3GS, that was amazing not because it is an iPhone, but amazing because it was my very first smartphone and opened my eyes to all the possibilities. Then came the iPhone 4, better in the sense that I could perform tasks faster with greater visual clarity. The iPhone's attraction (metal and glass) was also what later on turned me away, to the Galaxy S2. The S2 had a larger display, yet holding it in my hand felt half the weight of the iPhone 4. Sure the S2 was built on plastic but it didn't feel cheap at all. The android experience on the S2 was decent, not too shabby that would make me turn it away and go back to IOS on the iPhone.
After the S2 is my current phone, Galaxy Nexus. With ICS and later on JB it is a joy to use. Battery life on S2 and Nexus is not really up there with iPhone, but seriously for a heavy user like myself no smartphone battery life can satisfy me. I do like the flexibility of being able to switch out a battery whenever it dies on me, with the iPhone I can't do that.
My user experience has plateau'd and I don't see the new iPhone 5, especially considering it's price ($700) being twice as good as my current Nexus ($350). Being how good the Nexus already is, I can't really justify giving it up and spending money on the next latest and greatest smartphone. Can't justify the money, as it seems like smartphones have plateau'd in what it can bring and do for its users. What I would like to see now is improved battery life.
I went from paying (not including long distance charges) $110/mnth on the 3GS, to $70/mnth on the iPhone 4, to $55/mnth on the S2, to $25/mnth now on my GNexus. Each reduction in cost technically did reduce the amount of service I am able to receive on paper, but in practicality I gained service through my transition from reliance of voice services over to data services (skype/tango). I do about 1000 minutes long distance, so without relying on voice and instead on Skype/tango, that alone has saved me enough money to buy me at least two smartphones a year.
For me I'll continue to use my smartphone daily, but little do I see how future smartphones can benefit me based on my usage pattern.