I have a few Microsoft keyboards, but no Logitech ones. However, I have used a Logitech keyboard at work. Maybe Logitech keyboards are good, since this means fewer people are throwing them away or giving them to thrift shops. I have owned some Logitech mice, I think, but not bought brand new.
As far as the feel of the keys on the Logitech keyboard I've used, it didn't seem any worse than other rubber domes. But I did not like the tiny printing on the keys, nor am I happy with the fact that both Microsoft and Logitech are going to (different) nonstandard layouts to get rid of Scroll Lock and the right Windows shift for a more compact keyboard.
If they at least both went to the same nonstandard layout, it could become the new standard.
I can't really blame Logitech for not making mechanical switch keyboards, because they are such expensive and specialized products - not enough people would think that kind of keyboard is worth extra money. If you keep the same keyboard from one computer to the next, of course, $50 for a keyboard is not that ridiculous... and keyboards without mechanical switches have fancy features that make them cost more than that, in any case.
But the fact that the lack of a market makes reasonably-priced keyboards with good tactile feel, but contemporary features, hard to obtain, is dismaying. If not liking the same cheap junk everyone else is satisfied with makes us bitter, so be it.