If the guy still has it (i'm assuming you contacted him to make sure, most people don't bother taking their ads down), I think its worth it. The slide looks real clean, the jaws look weird, but thats probably a combination of paint, grime, and a crappy picture. If he really does still have it after 2 months, i'd offer $125 and he may take it, but i'd be prepared to spend the full ask. I always ask for a lesser price, if i'm going to, before I show up. Condition will obviously dictate the final price in person but I at least like to be in the ball park. On top of that, it is fairly rare, and a similar vise today, new, will run you $600+ and probably more, much more. Also, now that you posted the link, if you're going to pick it up you better run and get it, i've been bitten more times than one posting a link and some lurker swoops in and takes it.