If all this info coming in about LCS and comixology is accurate - and I have no reason to suspect that it isn't - it's a kind of a raw deal, and that is putting it more than mildly.
First off, this is really a referral fee - not a cut of any sale - and I think Brian is right to be concerned.
I have to agree with some of you that point to attitude and business sense (or lack of it) with LCS, and as I said in another thread of the 5 shops in my (more or less) immediate vicinity, while I would be sad to see any of them go, if 3 of those 5 closed tomorrow, I wouldn't be surprised given their business practices/acumen. But of the 5 shops there is only 1 shop that I feel any true loyalty to. Frankly, that's because he's been the only one that seems to behave like my business is important.
When the economy took a dirt-nap it was kind of hilarious seeing some of these retailers at the other shops trying to do what 'my man' Aaron at RX Comics had been doing since day one. For Aaron, it came naturally - in spite of being a pretty shy fellow. These other guys? The politeness and customer service riff, just wasn't a suit that fit.
Added to the above is that few of these shops - again, my guy excepted - treat each other as friends and colleagues. Instead they can be downright cutthroat.
Case in point: we had a comic shop here in Vancouver move after 20 - or more - years in the same location. It stayed on the same street, but moved about 2 miles West. Well shortly after that move, I am in a different comic shop (not Aaron's, but I won't say which) and I hear a customer talking to the manager saying 'You know, I used to go to that place over on Fourth, but they closed - went out of business.'
Now, did the manager of this shop I was in set this guy straight? Did he say 'Actually, they moved about 2 miles West?'
What he said was "Yeah, yeah - it's this economy. It's rough on all of us. Guess he had a good couple of years though."
I actually chimed in, and told him it had merely moved, and where. For my interjection I got a big thanks from the customer, and a look that kill from the manager of the shop we were in.
It's when trades and retailers become cannibalistic to each other that I think their end is near. But, this is just what happened in this case, and doesn't necessarily speak to LCS retailers as a whole, everywhere.