Flux are very comfortable and they replaced mine after the failure despite the fact that the warranty had already expired. They had a one year warranty and I was at about one year and four months.
That's something to consider if I bought the DS30's online.
Great price, but effectively in exchange for "no warranty" - not only because they are last year's model, but because it would be through a shop who is likely not authorized to sell online.
On the other hand, I can probably pick up RK30s for close to the same price.
An interesting consideration. I probably will never need a warranty, but:
$160 for last year's $260 binding is a great deal, even with no warranty.
$180 for this year's $180 binding is no particular deal, but would a warranty.