So just for consideration, it's hard to compete with "custom branded" products when bigger shops will always exist for cheaper and get better shipping rates, but everyone should remember this product is *to support HBT* and not necessarily trying to compete with places like Amazon or your local massive microbrewery.
With that said, do be sure in your state if you want to use this at commercial breweries, that you can legally get growler fills with branded growlers. I know here in California, you will be out of luck at many breweries, at best some allow you to put a sticker to cover the branding and they can fill it, but most can only fill "their" growlers with their branding. SD is better about this, but in OC LA SF... good luck. Of course, this is just uptight California, if you're in somewhere that's more "Free America" then it's a different story. Just a heads up
One thing to note about above, not sure how these are made, but if the HBT art is a sticker, and you place a sticker over it, both will be coming off when you try to remove it (maybe it's silkscreen or etched.. Austin?).