Sotheby's today..  

Not much there for me.
All I like are the Triennale lamp and the two coffee services (Circa 70 and Diamond).

Seemed like I wasn't the...
Seemed like I wasn't the only who liked that Nakashima bench.
Estimated at 25-30000$
...
Hammer at 74500$

MFA Boston
Has a Nakashima bench that they offer for public sitting in one of the galleries. Kind of exactly like sitting on a flat board. Yes, yes, it is beauty beyond compare...but still, is it too much blasphemy to put a cushion on?

That was interesting to look at, thanks for posting it.
The "Habanana" humidor is grotesque (!), no wonder examples are 'extremely rare'.
Curtis Jere sculptures now sell in the thousands, and at Sotheby's? Seems like only a few years ago you could find them on Ebay for a couple hundred.
I'm completely baffled by the Ico Parisi "Itri" bar (-as was everyone else, apparently).
Philip Johnson, is a sixteen leg table REALLY necessary?

WHC
The Raindrops sculptures have always sold for more than all the others, and there was a recent year-or-two boom during which their Ebay prices jumped from $1500-$2000 up to $4000-6000. Ebay prices for the larger versions of the starburst/urchin/spore sculptures also jumped, but the rest of the sculptures -- the abstract twists, the birds, the fish, the sports scenes -- still sold for only a few hundred dollars, as you remembered, even during that period.
Now that Jonathan Adler has reintroduced the urchin and Raindrops sculptures (including a $1650 replica of the rusty old mirror that sold at Sotheby's for $5000), the Ebay prices for those pieces are dropping back to their pre-boom levels. I guess the buyer at Sotheby's hadn't yet gotten the memo, or maybe his only basis for comparison was 1stdibs, where all the Raindrops mirrors seem to be priced (and not selling) at around $5000.
http://www.jonathanadler.com/shop/home.php?cat=418

It's also the date on the Artisan House/Jere pieces
Another raindrops mirror recently sold for 8,000. I think the dates add to the prices. Don't think a new version would be the same as one signed in the sixties

Oh, of course.
There will always be collectors who'll pay for antiques. It's just that when there's no new alternative, non-collectors will bid on the antiques, too.
When a new alternative DOES exist, though, they stop bidding, so the prices often drop. At present, for example, a non-collector who wants a Nelson CSS has no choice but to bid against collectors on expensive vintage pieces... But if HM resumes production of the CSS, that non-collector can take his money out of the auctions and just buy one of the cheaper new ones online.
Plus, it seems that even for many of the collectors, vintage pieces become less attractive once new, more-or-less identical, licensed reissues are available. It's really cool to have a Marshmallow Sofa when yours is one of 200 in the world... But once they're in the window of every DWR store, and anyone with a $3K credit-card limit can buy one, it's just not the same.