I'll take a survey of my co-workers here and my neighbors and find out how "folks" have developed over the last ten years (or so), but not only is there no shortage of the use of the term, it will be posted on the "props" thread as a distinct opposite to "peoples" (in inner-city lingo). Anyone know that difference? (post it there...)

I use "gotten" quite often (probably incorrectly) whilst I use "whilst" just for aural effect (almost never)