Good points, Chris. Crowlers are a silly waste in my opinion. We have them around here and I have zero interest in them. But most places that fill growlers don't purge with co2 either that I've experienced. I guess they assume you're planning to drink the beer within a day or 2, limiting the amount of oxidation effects.
And the AB 6 packs are $11.99 here I think. I thought I'd seen them for $8.99 briefly, but I could've been imagining that. I wish we'd get 6 packs of Sublimely in can...they should bring that one back. But it fell by the way of the black IPA, sadly.