You're a ham and you really want your ft 60 to transmit on 450-470 mhz.?
...........never mind.
You're a __________ and you really want your __________ to ____________________?
You can fill in the blanks for ANY hobby or ANY niche and you'll realize how tired that old argument is:
You're a *home brewer* and you really want your *beer* to *get you drunk*?
You're a *driver* and you really want your *car* to *go over the speed limit*?
You're a *shooter* and you really want your *magazines* to *hold more than ten rounds*?
You're a *audiophile* and you really want your *stereo* to *be loud enough to bother your neighbors*?
You're a *cook* and you really want your *knife* to *sharp enough to stab someone*?
I could go on, but I think I've made my point.
Just because a person HAS an object capable of doing something doesn't mean they will make a practice of DOING that behavior, whether it's drive at an excessive speed on the highway, or shoot up their office, or transmit out of band on police/business/[insert non-ham user of your choice here] frequencies.
Just remember-EVERYTHING has a legitimate purpose, whether it's a fast car, or high-cap magazine, or frequency agile HT/mobile/base station.
Also, remember the Part 97 regulation that allows use of "any means at its disposal to attract attention" during dire emergency to protect life or property. (It's Part 97, Subpart E, Paragraphs 97.401 through 97.405, BTW)
Now I, for one, would be pretty pissed off if I was in distress and all I had was an FRS radio to call for help but the man with a frequency agile radio was too busy arguing with a self-appointed radio policeman to find out where my boat was sinking or where the tourniquet was slipping (dramatic, I know, but that's the point) and send help.
There is a time and a place (under thankfully rare circumstances) for everything, despite certain naysayers feelings.
My $.02, and nothing more.
(And MY answer to your original question is a resounding "YES!" Faster car, higher cap mag, sharper knife, hotter flame, or more frequency agile radio! By all means!)