I voted durability. There are other reasons. I don't "prefer" Honda's per se, but I thoroughly respect them. Honda makes a wonderful motorbike. I started riding on a Mobilette moped (Spanish make), and my first motorbike with any kind of power was a 1973 XR75 (hey I was like 12). That thing bred a taste for the classic era stuff in me at an early age. In fact, the newest bike I own is an '83 XL600. That makes 3 Hondas total. I actually still have the little XR in my parents barn. Does that count as a SOHC model? Hah! Honda not only makes a pretty well streamlined bike, I have never known a Honda to score anything less than "clawhammer" in regards to reliability. That XR75 still runs. Many Hondas were sold, so any part you need is not going to take you years to find. Some parts are still available from the dealer. Some unfortunately aren't, like the headlight for my XL... though I am sure there is a model with a cross-over part that would work (I was still able to get a new head for my XR75 when we found out that it had a hairline crack back in '93-94). Though I think the right side intake boot for the XL genuinely IS NLA. Parts are pretty easy to come by in the secondary market, and aren't likely to dent your wallet too much. Many factors contribute to why as a motorcycle, Honda makes a good choice.