There's been some speculation about what will happen to Weaver values now that the company is out of business, so here's some up to date auction data. I was following several Weaver items on a Trainz auction that closed tonight. Two of the Milwaukee Road ribside boxcars in LNIB condition closed at just under $70.00 apiece, plus 15% buyers premium so that's right around MSRP or a bit over. On the other hand, I won a lot of four cars for $45.00+15%. Also in LNIB condition, these were recent production of older molds with die-cast trucks. I only wanted two of them, but I figure I can pull the trucks off the other two and resell them for cheap with plastic trucks. The lot consisted of a woodside reefer, an undecorated woodside boxcar, a modern 4-bay hopper, and a modern 40' tank car. Bidding interest was probably dampened by the combination of two steam-era cars with two modern cars. I'm happy - I got two steam-era cars I wanted plus some stuff to resell for a bit more than the price of the trucks and couplers. I didn't even try to bid on the ribside cars since I already have at least 15 of them and the final price was more than I paid for them when I pre-ordered.
This information is from the Trainz auction, which generally produces lower prices than eBay.