I'm planning on buying a Mack Warranty for my refurbished D50, but was wondering what would be the best in your opinion? A 5 year warranty, or a 2 year Ultimate Warranty that covers sand damage, impact, misuse, and normal wear and tear? Right now I'm kind of leaning towards the 2 year, because even though I don't exactly plan on dropping it, it would be nice to know its covered. Also, I live very close to the beach, the the sand coverage is definately a plus. Furthermore, I am pretty sure I will upgrade within the next 5 years, most likely the next 3 or so. and both warranties cost about the same, so price isn't really a consideration. Thanks in advance!