I'm sure they're available in the aftermarket for a lot less, as long as its a decent brand you should be OK.
As you're probably aware, mine's on the blink too. The first test I did on mine was to see if the fan comes on when you turn the AC on. If the fans don't turn on, the AC will not function. My fans don't come on, so I'm going to get the electrics tested before I start buying expensive parts.