I can think of a few reasons from the top of my head . Not everyone can make time in their schedule for a regular DnD session , some people have an often changing schedule or travel a lot . Some people might not have friends who are interested in DnD . Others might simply enjoy playing with strangers or meeting new people , or want to experience DnD in a different way than their home group . Some people might enjoy the goal oriented style of AL adventures naturally you can not spend 2 hours drinking in a bar at these events . Up until a few months ago , when WotC introduced the DMsGuild , the AL adventures were only available to stores who ran these events . This has changed , however , and anyone can purchase these adventures . Edit Well , I hope your questions were answered sufficiently , uKingRat 12