ORIGINAL: yarom
My comment was meant in a different way.
When comparing the dry the stats between comparable engines from manufacturers such as BME, Brillelli, ZDZ and DA to a similar 3W engine, you get much more for the money for these former brands - hands down.
For example, a 3W 50cc class engine has absolutely no advantage over a DA-50R, yet costs more. Same thing is true for 75 to 85cc class, 100cc class, etc. until 150cc. 3W Makes probably more sense when comparing in the higher sizes (until DA releases the 170) and certainly at 200cc and more (I think ZDZ has a large one).
So in fact, you get less for the money for a 3W and the manufacturer and/or importer, have not adjusted pricing to be competitive in the American market.
Therefore, I see very little comparative advantages in 3W engines, at their current prices. I also do not see advantages in terms of weight to power ratio, or quality, that might justify this gap. This gets even less favorable for 3W with the new Chinese engines, like the DL, although their quality (the Chinese) is debatable.
I am struggling with the Euro vs. Dollar argument, since ZDZ is produced in the Euro zone, yet their prices are competitive in the US.
Please define "much more". I have a hard time understanding how the 3W approach to crank design (which most any small engine expert will say is the better one, that is dual counter balance with three bearings) plus the dual magnet pick up that gives you a tack hook up and an LED for ignition monitoring, plus the rock solid mounting fixtures, and the read valve intake that yields better response, are not even considered by you. I completely disagree with your assessment of these engines and there comparable worth. IMO, you really do get more for the extra money you pay for a 3W. If you are only shopping price, then you need to buy a cheaper engine. But if you are looking for superior engineering and durability, and have a little more to spend, them buy the 3W.