The Turnigy is reliable, although I have had a couple of crashes that I can only attribute to brown out. As Lobster said, upgrading to the Frsky module is only about $25. However, the rx's are a good bit more expensive than those that can be bought for the Turnigy, but still cheaper than the Futaba rx's.
You are looking at around $500 for an 8 channel Futaba vs less than $100 for the Turnigy/FlySky. So, for around 1/5 of the cost you can buy a Turnigy and upgrade to Frsky, one of THE MOST reliable systems on the market. I don't know what could be more convincing than that!