all joking aside, I am not sure that anyone on these boards or maybe even anyone out there in comic land (and I might be biased here, but I am including clink, heritage, comic connect, etc...probably only metro if I had to guess) have bought and sold more copies of Tec 31 in the past 5 years than yours truly...
it is a BIG niche book that I really enjoy, very liquid, and I consider myself pretty well versed to comment on value (sales motivation aside)
the book in hand looks very nice... it is not apparent that it is an "ext" book as in "franken-extensive", but more of just an accumulation of resto that add up...also, the book is "amatuer" due to the nature of the material used, not because the work is "amatuer"...it is looks to have been professionally restored, but not using current professional materials (as deemed by cgc)...resto could have been done double digit years ago (given it is in an old label, that is probable)...
is it "worth" 10K...my guess is that 10K is just about the floor for getting into "any" tec 31 that presents better than a pr/fr or incomplete...
I think alan sold his 3 side trimmed ext restored 6.5 copy for about 8500 or so (not privy to exact amount), so by comparison, I feel that the starting bid is maybe even too "low" (but without turning this into a sales promotion, I am biased)