I decided to pick up the game when it went F2P, dusted off the old Target promo box I had on my bookshelf (bought it for $2 a few years back), then did a search for a few other promo items I could grab cheaply or for free - so I've got a few already.
Reading the Wiki, I noticed some of the exclusive promo items seem interesting. Photonic promo officer...chromodynamic armor...various consoles...is there a way to pick up these codes now that Steam doesn't sell the DDE anymore? Are previously existing codes acquirable/transferable?
Also, I don't understand the mechanics of the game well yet. Is there a cap on the number of BOs and consoles - which would, I expect, marginalize these? Or is there an advantage to be had acquiring all possible promotions and stacking them?