I have been looking for a tenoning jig for my table saw for some time. Now I see an old Delta 1172 for sale within ( but not real close ) driving distance from me. Newer General, Delta, Craftex etc. jigs seem to be constantly for sale in the $50.00 to $100.00 range; the older Delta 1172's only show up occasionally and usually in the $200.00 to $400.00 range. Before I go out and buy this one, I am just looking for opinions as to whether they are really worth the extra money.