Er... I'm not? I get new tyres when I need them (which is rather more often than you, because I actually drive my car quite often), I get the wheels balanced, and then there are no vibrations. It's so easy! I did once have a new pair of tyres fitted and they didn't do a very good job of balancing the wheels, so I noticed a slight vibration on the motorway. I took it back and they said they were sorry and balanced them again properly, and the problem went away. It didn't cost me anything either - it was just so easy! Like magic!
Your car isn't in tip-top condition. Your wheel photos and decade-old tyres alone, are testament to that!
You're welcome to your theory. It's wrong, but that does appear to be the way you like them!
I'm responsible for the maintenance of 4 cars in our house and I have a 5th as a company car that I don't maintain. After the best part of 40 years as an engineer working in the car industry, I'm pretty comfortable with being able to tell the difference between a wheel out of balance and various other sources of vibration that I doubt you'd even notice, let alone be able to diagnose!
