That's a very good price for an active adapter; I doubt you will find one for less than that.
(I cannot stress enough to go and use Monoprice for all things AV and cables!
I've had excellent results with their passive cables (Ethernet, USB, audio, etc.). I'm a little leery of their electronics though (mixed results), and this prevents me from wholeheartedly endorsing the above linked adapter.
The years just pass like trains. I wave, but they don't slow down.
-- Steven Wilson