I have it, but our current 5th wheel is too new and haven't had to use it. First time with Compass, so we'll see. I figure it this way. If I have it, I'll have a problem free coach (knock on wood - our Bighorn being the exception but never made it to use of the ext. warranty). So I may never need it. If I don't get it, it's my luck that I will be regretting it later and have lots of repairs that it may have helped with paying for itself. Plenty of cases go both ways, it's a cr*p shoot, or roll of the dice in my opinion.
Case in point - I've had an iPhone and replaced/upgraded it on every major numeric increase (1 to 2, to 3, to 4, to iPhone 5 and finally 6), I don't do the in between models. I never bought the warranties, replacement plans, Apple Care, whatever. I figure eh, if it gets damaged, etc it is $6-800 out of my pocket (in contract) and I have to buy another. What this did over the years was force me to be meticulously careful with the phones. I pride myself on this, and my phones are re-sold on an auction site after I am done with them and bring ridiculous top dollar because of how clean they are.
Then tragedy struck! For the first time, I took my iPhone 5 in for the big drink. Left it in my board short pocket, hopped in the pool... for an hour. There's no coming back from that. Hilariously, after I took it to a place that dried her out it worked, sorta! Anything GPS, accelerometer, and blue tooth didn't work, there were two bad modules and the cost was about that of buying a used one in good condition, no thanks. Did I wish I had coverage at 1 year and 8 months old? You bet! Did I scrape by on an old iPhone 4 I had laying around until the 6 came out a few months later, yup. Do I have the warranty now? No.
I only tend to do it on major items, starting with TV's (had it save me once there just last year). Bought a C63 AMG, yup has it. My truck doesn't, but I'm on #8 and have a long history with FCA corporate, they treat me well.
Feeling lucky today (and later down the road)? Don't know if my insights and thoughts helped, might have made the indecision worse now that I think about it.
On edit: saw the last reply while I was typing mine - yes negotiate! The prices are not fixed and even more evil you can sometimes swing at the bank for a lower interest rate if you have it.
