Ok, foam time. Current quotes are $570 for a sheet of 2.5 density 4" thick foam, enough for the whole v berth. Alternate quote is a little over $1k for the supposedly very nice Latex foam. I didn't feel a $500 difference in comfort when I tried them out, but am curious about the durability and other qualities of one vs the other. Anyone spring for the expensive stuff and feel good about it? Anyone doing just fine with the "cheaper" alternative?