[eddie1960]

consider the price paid the lenses, the rest is little to no resale value (filters particularly are tough to flog) so 2 teleconverters and 2 good lenses for $100 I'd say pretty good deal. even if you tossed the rest you'd be able to recoup easily.
If you can sell the spotty without a lens for more than $25 or so I'd be surprised. mostly the prices paid are by people chasing the attached lens
If you have an m42 55 f2.0 kicking around and the camera seems to be in decent kit put it up for 80-90 and accept 60

[clockwork247]

They can still be found for $100, but they're getting rarer. And considering that the 50 1.4 is almost non-deniably the best Tak ever made, that drives the prices to the moon.

to the moon is about right... on 2nd thought i just picked up a sigma 70-300 f/4-5.6 APO for 75 today, not the best deal but it let me reach 300mm, worst is that i flip it off for 50, so far I like it alot, 1:2 macro at the 300 end, mount on a tripod + my raynox 150 about to come home will be kindda nice , good for shooting bugs and junk at a far away distance.

[Balog]

Finally found that darn M42 adapter I got for Christmas and tried out the 135 and 50. I really, really should've tried the 135 first, because that 50 is soooooo crisp. I'm in love. This is by far the best glass I've ever taken a shot through. <3