Yeah, I love trading and auction houses, hooking up guild members/friends with cards or manipulating the market to try to earn money is always fun, but not having ways to earn free money really is a pretty significant downside. This is what keeps free players around longer, even long term, and with out it most of the free players BF is going to gain are going to likely be gone with in a week never to be heard from again leaving the paying players with the same very minimal player base they had before they did this. Further, BF is in a dangerous state right now, it did so poorly in its first month or so that it already had a price drop on the retail boxes from 50 dollars to 30 dollars! This not only shows a game in peril, but is causing dissent among early adopters who feel like they got gipped out of 20 dollars for taking a chance on the game.
Alteil is backed up by media blasters and already has a pretty strong road map laid out for them by the Japanese game for the next 3 or so years, BF is backed by EA, a company that has known to abandon games and shutdown the servers for games barely a year old if they felt it was no longer profitable. Check out this old news post: http://www.techspot.com/news/22477-ea-shuts-down-online-game-servers.html
I'm not saying BF will die, I wish them the best of luck and hope they become successful long term, its a great game concept that I think has room to grow if this game proves successful, but right now I have more faith in the long term health of Alteil then I do BF. Allowing people to play for free was a step in the right direction, it will, at least in the short term, increase their player base which from what I had heard was already pretty lacking depending on which country's server you played on, but it still has a lot of things going against it that if not address correctly could doom the game before it ever really gets going.
The bunnies of Lavato have special abilities, like 'Action Skill: Make Carrot Disappear.'