Yeah, spending money hurts.Awesome! I've read they are a major upgrade for the OBS and SuperDuty trucks but I've never been able to stomach the price.
But, I look at it like this: While it's one fairly spendy part, it's still less than ONE monthly payment on a newer car. So if it gets me one more month of ownership, I'm coming out ahead. (and I expect it to last another 200K miles, which will probably be longer than a month)
Or, as Kurt always tells me, "Buy once, cry once".