I looked at it but my opinion matched Froggie's. It seems to be going like a lot of other things . . more people get interested in the 310 items and the price goes up. Sometimes, I question the judgement of some of those that be when I see the prices they sell for. I have "over paid" a few times as it was for something that I needed to either complete a set of 310 dies or it was something on the scarce side - we all do it now and then. I keep track of molds on there . . mainly just for fun . . . and I can't believe the prices some bring when you are buying a pig in a poke. But, if I was selling . . . I wouldn't complain if it went high.
Sometimes "lots" can be fun. I bought a "lot" of 310 dies one time and took the gamble on it - poorly described but I spotted several in one of the photos I needed. I got it at a good price and when I got the lot, sorted them out, I had 13 complete sets of various calibers. That was a few years back and I ended up selling them at a fair and reasonable price to those that could use them, traded some and kept a couple to use. When the prices started going up, I pretty much stopped looking other than for fun as I have sets for the calibers I load. If the day comes that I don't use them anymore, they will go to someone who will use them and enjoy them as much as I do.
After thought note - I have bought and sold on that site for years. I've made a lot of good acquaintances along the way as well. I ALWAYS try to be fair with whoever buys what I have up - make sure that it is well packaged to protect it for shipment, ship it quickly and IF there is a problem, work it out. Every site has its issues . . what turns me off on a lot of the listings is poor photos (no excuse for ti and in many cases, it's an attempt to "cover up" an issue, poor descriptions when a little research could provide the seller with information about the item, not doing a clear and concise description - I love those that just put "bullet mold" with no information so you have to open the auction to see what it is - I just cruise on by those as I consider it laziness on the part of the seller - and high shipping costs. The other day, I looked at a mold that would have gone for a fair price - but the shipping was a few pennies under $20 - really? For something that easily fits in a SFRB. On auctions, sometimes you win and sometimes you lose - don't be disappointed if you don't have the winning bid - chances are that one just like it will come up for auction again in a short time. With few exceptions, nothing is "one of a kind".