I come from Elmira which is where Twain spent many a summer. His study is still standing on the campus of Elmira College, moved uphill a bit from the riverbank it used to sit on...and he's buried in Elmira, too in Woodlawn cemetery. Schoolkids in our town were taught a healthy reverence for Twain.

Last time I was visiting my parents I went to the farmer's market; one of the few reasons inhabitants have for going into the downtown commercial district which has become a ghost town over the years...most of the businesses stand empty and people long ago threw over this nice shopping district to go to the local mall. Amid the stalls of vegetables and baked goods set up on the common was a man walking around in a white suit made up to look like Twain; he just walked around and waved to people. Very odd but quaint.

My hometown has bungled every attempt it's ever made to capitalize on the Twain legacy; including tearing down Olivia Langdon's house to build a shopping plaza. (One block over they also tore down Tommy Hilfiger's first retail shop, a unisex clothing store from the 1970s called People's Place, to build a hockey rink).

Meanwhile places like Hannibal, MO do just fine drawing tourists interested in Twain. A decade ago the "Mark Twain Drama" drew in a lot of visitors to Elmira; a nice pageanty sort of musical-but-not performance which chronicled Twain's youth to old age...
but there's been nothing since then.