Yeah.
Personally, as far as function is concerned, there is little logical use in changing phones for me. I do in fact have a few more months before my contract expires and I'd like to eventually choose a very new phone that I can also support on my site without being a few months behind everyone else.
I have until November this year to renew my contract... so I have till then to decide... ^_^
Having said that, unless another model has superior battery power consumption/time then I don't have a need for a different device. Like you, I commute throughout the day and therefore need the power to last me through the day, so I tend to limit YouTube, GPS or other things which happily eat away at the battery.
DHD + latest Lord's ICS build (8.2 as I type this) with radio 26.13.04.19 has a great battery life even with all the hammering it takes from using DicePlayer, PowerAmp, exchange Email, Dolphin, XDA Premium and even games like temple run & zenonia 4...
With the above usage... I get the trip to work, actual work usage (i have my desk phone on divert to my mobile) and the trip home... all in one nights charge... so I only need to put it on charge before I go to bed.
Hell, I've even forgot to charge it overnight and I was still able to crawl through most of the day... with charging it late afternoon, ready for the 2nd half of the movie I was watching on my trip to work! >_< hahaha!
The idea of having loads stored on my device on a large SD Card is fine, but based on the above, I wouldn't use much of it.
The idea of losing the phone with so many eggs in one basket is not very appealing.
I hear you there dude... I had my 1st DHD nicked through a burglary... =(
However, all I ever lost was my 1st 32GB class10 MicroSD as well as my nandroids...
All my files, movies, music and photos exists on multiple devices... so anything that was on my DHD is a copy from my other machines...
...pity I didn't do the same with my Nandroid... I keep them locally for the purpose of error recovery... would've kept copies of it off the device had I wanted to be safeguarded from potential theft... =_=
As it's looking now.. unless HTC starts building new units with SD support, I'll not be jumping on their new range quite just yet...
If November 2012 hits and they've not released a device that fits the bill for me... its looking a lot like I'll be going for SGS3... =_=