To answer your question....
It's a good price for the bucket and all the guts. A kit alone will cost you over a hundred, then throw in the electronics it adds up.
It's true the FX is not longer allowed for deployed or Elite, however if that's not you cup of tea, it should not be a worry. It's still approved for the 501st.
Their are better buckets out there, that are pretty easy to get a hold of. The starting price is north of 200.00 USD.
So now you know and can decide what you want to do.