That's a decent price for a Das. They were part of the "first wave" of the mechanical keyboard revival a few years ago.
It includes a PS/2 adapter (for those who insist on full n-key rollover) and has a built-in USB hub, so it does have a little more going for it than the no-frills Monoprice unit.
The years just pass like trains. I wave, but they don't slow down.
-- Steven Wilson