The mouse for eternity?

For about 10 years there is this version of Intelli Mouse. I've gained over the years a total of 3, because I used to use several PCs. Currently I have a black version of the 7 years since every day is making its service. Has been wear and tear and you can clearly see where my hand rests, as these bodies are rubbed bare.

I have 1 mouse once bought for just under 30 DM in a beautiful box. This is commonly referred to as "Retail".

This "System Builder" or "OEM" mouse so here is the same price as before.
However, I can say that it is worth it, even if I think this is too expensive.

Actually, it is maintenance-free. Sometimes they should be cleaned (sliding plate on the bottom) or sometimes between the keys. It is operated and functional for left and right. The discreet red light was 10 years ago, one of the highlights, now more not worth mentioning.

Best part, when someone is looking for a simple, reliable mouse.