[fimbulvetr]

Yes, that's right. I switched from an advantage to an advantage2 (which has the non-rubber keys) a few years ago as my new gig purchased the advantage2 for me. Honestly, I didn't even notice a difference. The new f keys are slightly larger (but not full size) and plastic, but I would personally say that I wouldn't drop $350 for the plastic ones. I used the advantage for 15 years, so I was well used to the rubber ones. A few months after the switch, I realized they weren't rubber - that's how insignificant the change was for me.