I ask this seriously, what do you find you get with a nicer/professional mouse? While I have looked at getting one and am not opposed to it, I really don't know what makes a $100 mouse so much better then the $10 optical mouse I have.
Some years ago, when my trusty G9x started having some coil whine issues I got a G700s. It was the first wireless mouse I felt didn't feel wireless. Instant response, very, very smooth tracking, etc. I still use it (with its original Ni MH battery!) along with an MX Ergo wireless trackball. While the latter feels much better than I remember wireless mice used to feel, I still feel the difference when I get back on the G700s or on a corded mouse.
What I get, is a mouse that fits MY hand perfectly and doesn't exacerbate pain in the wrist I have due to tendon damage.
I wouldn't categorise mice "professional" and "non-professional" but I think it's worth exploring a few different options if you can, to find out what works best for you.
Actually thinking about replacing the mouse with the ultimate hacking keyboard and one or more of it's add on modules.
Also, the ability to unlock the scroll wheel is very helpful too. (Just flick it gently and you're flying up to the top of the page RSI-free)