HTA (Home Team Advantage): A promotional program introduced by Topps in the late 1990s, usually involving specific pack types and products exclusively available at participating Hobby stores. The first HTA program was 1997 Topps Stars Baseball, which was only available in HTA stores. In recent years, Topps has made a special run of their Topps Baseball and Bowman Baseball products for HTA stores.
Topps and Bowman HTA packs usually contain about four times as many cards as a standard wax pack, and have insertion ratios are better than regular hobby and retail packs. Some HTA packs contain exclusive insert cards.
There's some debate whether HTA packs contain more cards or hits of players on the local team.