Here's looking at YOU, Mark Davis. Every reason will be officially documented, so there can be no claims of "forgetting" the reasons to visit.
Reason 1.
We have a trolley. And it's free.
Have I been on it? No. But... It's there. And it's adorable. Cruising the streets of Downtown Sioux Falls. And I'm pretty sure they're good at keeping any homeless people off of it.