Was doing a little research and found an article that classified my 034AV obsolete. My saw is unusual in that I have hardly used it since buying her new in 1984 (as evidenced by lack of wear on clutch, drum and rim sprocket) so I may not have an objective view. Had her out last week to fell a mature crimson maple and she ran like brand new. So here is my question. Does anyone still use the 034 for heavy residential or commercial work? If not, is it because it is too heavy, old technology (newer saws start easier and run/cut better) or too expensive to maintain or all of the above? Thanks.