I don't balance my wheels... haven't for a long time. No shakes, wobbles, or problems. YMMV 
I've been through several sets of tires and never noticed anything like that... Maybe I've been lucky, but my treadwear has been consistent down to the wear bars around the whole circumference of the tire. I'm not going to say it doesn't happen, but I haven't experienced it with two different bikes over a 6 year period of not balancing the wheels at all.While it may feel fine the difference comes in when the tire starts to wear, the heavy side will be thrown to the ground harder than the light side and wear quicker creating uneven wear before the tire's end-of-life time.
Yeah, but my friend has a professional tire changer in his garage and does it in about 5 minutes and only charges $10. It's good to have friends who do so many track days that they buy their own tire machine to save on tire changes!with a few basic tools its not bad at all to swap the tires out.
i'm not trying to say you're wrong or anything negative here.