Whole Foods Park Lane
The Beer: Yes, you aren't a soccer mom sporting a crazy-huge two carat diamond. Yes, Whole Foods is still well worth your growler-filling attention with 18 taps pouring a strong local lineup plus non-Texans like Alaskan Smoked Porter and Oskar Blues Ten FIDY.
The Cost: As low as $9, as high as $20 for particularly strong stuff (like that Ten FIDY).
The Bonus: Besides ogling said soccer moms as they stock up on fair trade quinoa? They'll also help you with special orders for craft kegs if you're having a party/ self control issues.