One would certainly hope that problems occur less frequently at the alpha level, after all, part of what you're paying for is "quality" and what is "quality"?
Let's go to the business dictionary:
Quality -- Definition
In manufacturing, a measure of excellence or a state of being free from defects, deficiencies and significant variations. It is brought about by strict and consistent commitment to certain standards that achieve uniformity of a product in order to satisfy specific customer or user requirements.
ISO 8402-1986 standard defines quality as "the totality of features and characteristics of a product or service that bears its ability to satisfy stated or implied needs." If an automobile company finds a defect in one of their cars and makes a product recall, customer reliability and therefore production will decrease because trust will be lost in the car's quality.
In reality, there are slip ups with all brands, even with Zeiss, as pointed out above. Here's another customer's story:
Zeiss quality and performance are legendary, so it was with confidence and enthusiasm that I purchased a pair of Zeiss Victory FL 8x42 binoculars. On the first outing the right-side "adaptive lockable eyecup" malfunctioned in its plastic track, so that the two eyepieces could not be adjusted uniformly. The quick fix shown in the owner's manual failed to remedy the...
Read full review (it gets worse):
http://www.amazon.com/review/R1ETH6NIB98XU0/ref=cm_cr_pr_viewpnt#R1ETH6NIB98XU0
It took me about 20 seconds to find this bad review. I'm sure if you did a search, you could find similar stories about Leicas and Swaros. I've read them all on BF.
However, I would bet that you'd find many more QC issues at the lower price points simply because of the lower quality materials, where they are made (China), and the sheer numbers that are made.
Nobody wants to get a defective bin, but I think most customers realize that when you're paying $200 you can't expect the same quality you get at $2,000. OTOH, when you pay $2K for a bin, you have the earned the right to expect the highest quality, and if an alpha doesn't meet that standard, it's no surprise that the customer would be much more upset than if he had paid $200.
But that's where the warranty and customer service come in. It's also why I have been reluctant to buy a second-hand Leica. I would not hesitate to buy a second-hand Zeiss or Swaro.
So while all three brands might have initial equal quality and get high marks by J.D. Powers and Associates, it's the aftermarket service where I'd look harder for the differences, because when you buy a bin at the top level, you should expect it to last you a very long time and not cost you another arm and leg in repairs.
<B>