people aren't talking about that as much because Unity already has that, so it's not quite as new. It's just keeping up with the competition at this point.
Agreed, and it's been an amazing success for Unity. I imagine it's why they now give standard Unity away for free, they make more from the asset store than from the editor licenses.
uhm no. Unity is not free, only the limited indie version is, Pro is $1500 which anyone who is serious about making games needs. Making a bigger game with a Team of 10 for iOS ? Get ready to shell out $3000 per seat, another $1500 for Android and basically youd also need Teamserver which is another couple of thousands.
I think revenue from the Asset Store is relatively minor compared to that. Ive heard of success stories that sell plugins worth a couple of thousands per month, but thats about it and those are not many.
In 2012, the NGUI programmer stated that NGUI was making him three times what his previous job had paid, and that his starter kits were making $700-1500 a month.
http://www.tasharen.com/forum/index.php?topic=2126.0
So that suggests there's certainly some revenue there.
NGUI was also one of the most successful plugins in the entire Store, so his revenue, while significant, should also be treated as a ceiling on what a company can expect to get.