For my sanity, and my back.
The gas spring arms on the basement doors of my 2001 Brave were shot when I bought it. No big deal, I thought. After 1 year I can say I was wrong about that! I had had enough of holding those doors open with my back while getting something in or out of the basement, or even hooking up power and water/sewer, plus looking like an idiot.
Problem was, I had 24 of those puppies, and winnebagoparts.com thought $24 apiece was a fair price. Well, I was able to do a bit better than that. At rvddirect.com I got the exact same part for a little less than $9 each. Of course they charged a rediculous $18 for shipping, but they shipped them the day I ordered them and 1/3 the price was hard to beat.
Well worth it, every time that basement door flies open and stays open!