title_body: Why do some grocery stores in Colorado have regular beer and liquor but some only sell 3.2% beer?
upvoted_answer: Retail stores in Colorado sell spirits, wine, and beer. Grocery and convenience stores sell 3.2 percent beer only, and then not between 2 a.m. and 6 a.m. Package stores are open 8 a.m. until midnight and are closed on Sundays. Bars stop selling alcohol between 2 a.m. and 7 a.m.
  http://www.alcohollaws.org/coloradoalcohollaws.html  
  
  I would guess those "grocery stores" selling spirits and such are probably classified as something other than a grocery store.  
  
  This information may be a little out of date, Colorado does allow Sunday sales now. I found this on Wikipedia:  
  
  
    Spirituous, vinous &amp; malt liquor available in liquor stores and
    liquor-licensed drug stores only.  Liquor stores closed on Christmas
    Day. Sunday sales restriction lifted on July 1, 2008. Liquor stores
    and liquor-licensed drug stores may have only one location, while 3.2%
    beer may be sold in gas stations, supermarkets, and convenience
    stores. Appropriately licensed businesses may also sell 3.2% beer for
    both on and off-premise consumption. A small number of grocery stores
    are licensed as drug stores and sell full strength beer, wine, and
    spirits. As an example, a chain grocery store that has pharmacy
    services at most or all locations may elect a single location in the
    chain as the licensed establishment to sell beer, wine, and spirits.