One of the major benefits to a hardtail is the ability to change the design of the bike without major surgery. For example, poeple that buy a 6" over hardtail, then decide they like the 4" or if you get old and need suspension or whatever. If you buy a hardtail from someone reputable, you may be able to avoid some of the alignment issues- I checked my bolt-on hardtail jobs, and never had any major misalignment. I wouldn't worry about the hardware, as long as it's high quality- and use locknuts!. Triumphs have had bolt- on rear sections as far back as I know, I've never heard of a stock 40's or 50's bike that broke in half from hardware failure. I think just about any pre- oil in frame Triumph has a front loop bolted to a rear section: be it rigid or swingarm. As far as looks, I think a welded on bolt-on hardtail looks worst than just bolt-on, but that's just my opinion. I hope this helps.