Right now the only way you can get bags is from the Item Mall for 249 AP. Could also try buying bags from people, it's a trend on Emerald at least.
Most of the F2P games I've played, I have yet to play one that has such an NPC. :/ They are always a luxury item from the Item Mall.
Yeah I play on emerald and I personally haven't seen any bag auctions or sales on world chat, the other day I went to the Auction house and I wasn't able to find a single bag for sale there.
Those people that do sell the bags often put them at ridiculous prices and that just makes you wonder if it really is worth the hassle
Yes I understand there are bags in the item mall and thats perfectly fine but 249 AP for a five slot bag is rather absurd no?
I personally think it would be quite nice if you were able to get 6 slot bags from a vendor and they put a 12 slot bag in the item mall for the same price as the current 5 slot bag that is there.