[strike]Is teh deadsies, it's showing up as $50 for me now =([/strike]
I've loved each of my Ergo 4000s, right up until they suddenly died within a few months =/ They're rubber dome, fairly decent feel for a rubber dome (except sometimes the space bar which can have sticking/creaking problems), and the layout is lovely, it's one of my favorites, especially with the reverse slope base used, a very relaxed feeling to type on for hours.