Most guys are looking for the older all steel receiver versions, which command more $ at this time (generally in the $1000-$1250 range depending upon condition from what I have been seeing, and has jumped from the $800 to $1200 mark in the past 3 years). The Belgian models are commanding a premium (seeing them at $1400+). If I recall correctly the 222 Rem, 257 Roberts and 284 Win are amongst the more rare chambering, and would therefore command a premium, when found. I know that I have been looking for the Roberts. I have seen, and passed on a 284 Win several times, due to the fact that it had been shot with ice in the barrel that bulged it, and the gunsmith had shortened and recrowned the barrel, but reports from one of the owners after that was that it just wouldn't shoot anything well. Otherwise, it would have come home with me.
The pre-81 model has the 4 round magazine, with out the rim, that does not fit flush with the bottom of the receiver and depending upon condition, is found today at the $1200+ mark. The magazines for the pre-81 are harder to find and commanding premium prices (seen them go for $350+), compared to the magazines for the later versions, such as the one for the rifle pictured. You don't see as many of the long action BLR's out there, but they do not seem to be commanding higher prices, at least that I have seen ($850-$1000).
And then there is the straight grip vs pistol grip models, and this tends to go which ever way the buyer prefers. Some really like the pistol, grip, while others (like myself), prefer the straight grip. I have not noticed a premium for the stock version, except for the T/D's, due to cost of manufacturing. A handy rifle to transport!
I know one writer that has published an article of a mountain goat hunt, and took his goat at 600 yards with a T/D chambered to 300 WSM, that reported no shift in poi after take down and reassembly. That's confidence inspiring!
