There is more than corn in Indiana! It is just like any state, there are things that interest some but not others. Indianapolis is great! Lots of shopping, the nations #1 rated children's museum, (among others) arts and night life, parks, the list goes on. Northern Indiana has Lake Michigan, Notre Dame which, believe it or not a very interesting place to visit. Also Lake Shaffer with Indiana Beach Amusement park. Southern Indiana has Holiday World with an awesome water park and theme park! There are numerous vineyard and wineries. Brown County in has incredible tourism too and lots of amazing scenery and shopping. There are way too many state parks to name that all have camping, hiking, boating, fishing swimming, canoeing and more! Just in the county I live in, there are 2 and and 6 more just in the surrounding counties! (I live in Southern Indiana.)
It all depends on where you go and what you are looking for!!