I have the Voyager. I was actually just in the Verizon store yesterday. My phone had been acting up a little, but when I was there, they check versions and I was two versions behind. I've only had the phone for about 9 months, so they update versions pretty often.
So it might be a good idea to have them check versions & update every so often. Also if you travel frequently, have them explain the *228 function. (I think it's *228 maybe *288. I don't remember. But they'll know what you're talking about.)