If you're so unimpressed, stay with what you've got or, if you really feel you have to learn a new system, change to Linux and get out of the Microsoft churn wheel altogether.

I have and I haven't regretted it at all.

I would have thought it would be very clear by now, these interface changes are Microsofts justification for squeezing more money from you. Ultimately, that's what it's all about.