Unless you found a smokin deal on some touring boots that fit you perfectly (highly unlikely), you should just try it out before you put any money into it. The most important thing is to have boots that fit you comfortably for both the up and down portions of the day. I ski with people that use alpine boots and are just fine during the day.
That said, there are quite a few boots on the market now that have a nice walk mode and swappable soles for both alpine and tech bindings (the Technica Cochise boot family immediately comes to mind). If you're in the market for new ski boots anyways, you should look at all those 'hybrid' boots and see which ones fit the best. They'll work great, provided they fit well, even if you don't end up touring much.
Make my day.
You don't walk in and say "I'll take a extremeherpmicrobrewlight for three dollars." You walk in an say "give me three PBR's and someone hand me the peanuts." -Peach.