Some of this I could agree with, but the latest offerings from Logitech have been lousy at best. I bought a G903 a bit ago, it never made it 2 weeks before both right and left clicks failed. I returned it and was given another one, it lasted less than a month and the same thing happened.
Rather than return yet another one, I voided the warranty and popped the top off. Both the right and left click buttons were some of the cheapest garbage I have ever seen in a
remium: mouse. I opened the switches and inside I found that the little brass spring had failed on both buttons. I also noticed that the switches were manufactured in China and were badly designed. (plenty of room for dust and debris to get inside)
I went to the dollar store and bought a $10 mouse intent on stealing the switches ou of it,, imagine my surprise when I opened it up to steal the switches only to discover they were premium Japanese Omron switches. I desoldered and installed those switches, and it worked great for awhile, but it developed connectivity issues and died. At that point I gave up on Logitech for everything EXCEPT their G13. I will never part with my G13.
As for Steel Series, that is a joke. I bought one of their mice, didn't last a week and it died. I also was gifted a keyboard, but ti was HORRIBLE, right out of the box the keys would bind and stick down. I have looked at other steel Series equipment and I can tell you this, you are NOT getting what you pay for. Their equipment is substandard and lacklustre. I would NEVER buy anything Steel Series. They pack their drivers with adware and other junk that installs without your permission.
When I saw you recommend SteelSeries, the whole rest of the recommendation was dubious at best.
One further note, I see no mention of Roccat anywhere, and I can tell you this, their present offerings are a load more reliable than both Logitech and Steel Series. Their support is a little anal retentive, but their hardware is top notch and uses quality components.