People are talkative. That's for sure.
My own view on the trading...
No to AE-powered shops. Because AE is OP and will be more late game. Because you know... A few bits of quartz shouldn't give you semi-infinite storage. So that would make it sorta late-game.
I'd like something IC2-powered, sorta like the trade-O-mat gone better. More items at once, some way to auto-refill... VERY LITTLE power needed. Possibility to turn it on and off with RS, so that way you can set a pressure plate right in front and when people step on it, ta-da ! Store opens. As soon as they go away, store stops using energy. So kinda early-game.
If we could have 2-3 tiers of it, I'd do something like this...
Say 4 items for one vending machine made with Steel. 3EU/t.
Say 8 items for one vending machine made with Al. 2EU/t.
Then 12 for one vending machine made with SSteel. 1EU/t.
Less EU/t so you get a reason more to get the more expensive ones.
Then I guess maybe a 4th tier working with AE and made in Ti would make sense, since I plan to have AE around Ti level. (Because, yes. It really is powerful.)
However, as far as I'm aware, such a nice system doesn't exist, the trade-o-mats being somewhat similar but too... Un-functionnal. (Single item on display.) I also would be totally unable to do something like that.
If Bloody thinks it's a nice idea... (I'm sorry to ask you something yet again, though. ;S Wish I'd be a better coder.)
---
Also, I REALLY like that idea.