YES, YES, YES, YES, (add more Yes's at your pleasure).
I have two sets of renthals. One has been on my bikes since 1999, yes, that is more than five years. The second set I purchased as a "just-in-case" spare, but even after many, many crashes (one on a California dry lake bed during a National Hare & Hound, so I know I was going really, really fast), the bars are still as good as the day I slapped them on the bike. I even had a third set of bars (double just in case), but I gave them to a friend this summer along with an extra set of bar mounts, as he had bent his stock bars and didn't have the money to purchase a new set of bars. Figured I had hauled the second spare around in the van long enough.
So, YES, YES, YES (Oh, I already said that....) Ok, I believe Pro Tapers would be a wise investment.
Rick