By US standards, the price (US$565) might be a bit high. But supply and demand is somewhat local, so hard to give an absolute opinion.
The paramender is a specialized tool, so if you don't plan to do macro work, you can always sell it.
I think the 190B is the same as the Bogen 3001 (which I have). If so, it's a bit light for the C330 but great for travel.
Parts for the older chrome lenses are getting tougher to find, so factor that in.
I agree that being able to physically evaluate the equipment is worth a premium.