I asked myself the same question mid last year then went out and rode maybe a dozen or more bikes before settling on the Sprint. In the end it was a no-brainer. As a tourer it makes and awesome sports bike, and as a sports bike... well it's a sweet tourer!!! As a commuter.. well all that I'll say is you'll spend your commuting hours feeling sorry for the poor buggers in their tin-tops and getting more than the odd jealous glance from fellow bikers who (most likely) wish they had a Sprint...
She Who Must Be Obeyed will find it comfy just as you will, it has a motor made in heaven, it handles, and is capable of upsetting the young upstarts on their R1's in the twisties if you're up to the job.
The quirky bits? Well they are few and far between but where they do exist the fixes are easy and cheap - courtesy of the good people who frequent this web site in most cases.....
By all means ride everything else out there - there's a really good chance you'll come back to the Sprint in the end - I'd almost guarantee it.
Go forth & test ride one tomorrow...
Muz