I know this will probably start a good discussion about extended warranties, but generally all extended warranties are a waste of money. Do your research and see what the expects say about these warranties.
I.e. good sam's has a 2 year warranty that with a $500 ded. will cost you the $500 along with a $800 premium. Consider that the first year is under a Montana warranty that one year will cost you nearly $1300. For a 5year warranty (acutally 4 years of good sams) it will cost you nearly $2600. And, this is with a 2013 5th wheel.
If you go to a 5 year and a $100 ded. you will be paying over $4000 for the 4 years of extended coverage.
Here is a good article to read before you decide on an extended warranty.
http://www.wheelingit.us/2012/09/11/...ed-warranties/