I have a 7.3 fx, got it last summer, when I was just starting to ride a lot again. I love it dearly, and it was absolutely the right bike for me at the time, but I've kind of out-grown it. It's still my in-town, errand-running bike, but I have a traditional road bike too, now.

In my experience, the positives of the fx: the upright position is great in traffic, it's sturdy, and stable. The negatives: it's heavy, slower, and not as nimble as I would like. And the flat handlebar does a number on my hands...

That having been said, I've put a lot of miles on my trek, including rides up to 50 miles. And although I've moved on to another bike for long rides, I still put 40 miles on my trek last week just running around town....

My brother also rides a 7.3 fx (his is a bit older) and he's never felt the urge to move on to another bike. But he rides a lot less than I do-- mostly rides under 10 miles, in town, on weekends.

So it all depends-- how much you ride, how much do you expect to be riding in a year's time, and where do you normally ride, would be the questions to ask. And also if your LBS has any sort of trade-in policy for if you want to go to a traditional road bike in the future...