Hi Randy. Yes, this has gotten infernal when you're almost offered a warranty on a screwdriver. I can't remember the last small Best Buy purchase where they still offered...
But your question goes more to the issue of your Dometic's reliability. I generally feel that successful operation during the basic warranty period is an indication I didn't get a lemon. Therefore I assume there is a high chance that the next 2, 3 or 4 years will pass smoothly. On this item and the next few warranties you'd be offered, you would lay out some significant money -- almost enough to replace one major item if it failed. For this reason I like to 'self insure' and forego the warranty. I've done this on many major and technical pieces of equipment. You know what? Not a single one of them has failed!
Go buy yourself and Pat a nice dinner at double your normal budget! You're just rollin' in all that cash, mon!!