Personally, I think the towns haven't done enough thinking.
WHY TO CONNECT TO CHICAGO:
Access for day tripping *to* Chicago should mean that more knowledge workers can live in Indiana but access high-paid work/consulting/contracts in Chicago. That's good for local real estate prices, homebuilding, & spending power. So I'd suggest that they *not* think that tourism brings any value (it is probably a net loss to them and a net Chicago win) but should instead focus on the general "market-access" and "economic stimulus" that being able to move freely between Indiana and Chicago brings. If there's a *win* for transporting people, it ends up being about workers and students, not tourists.
HOW TO CONNECT TO CHICAGO:
Frequency. Frequency. Frequency. Speed is nice and can save you an hour or two. Frequency saves time in chunks of 3, 12, and 24 hours at a time. Day trips are just too tricky (risky) if your carrier only has one "inbound" (to CHI) and one "outbound" per day. Miss a trip and it costs you a day a hotel and 24 hours (or, really, you take a bus and have someone come get you in Lafayette or IND)T his is my bus point--it must be already that when the train fails some people take a bus. NICTD is intriguing. To meet the "why" above, the "how" I would propose 2 overlapping bus/thruway routes:
THE EASY CITIES along I-65 (AM Inbound, late PM return)
IND-LAF-REN-GRY*-CHI
GRY is an NICTD station and has Amtrak Thruway service.
THE HARD CITY:CRF (AM outbound, midday return)
For Crawfordsville, my bus would run (skipping REN)
IND-CRF-LAF-GRY-CHI
I'd never have a bus stop in both CRF and REN (too much added trip time for too few people...and still I'd give IND & LAF double their current 1x)
"Trying to solve congestion by making roadways wider is like trying to solve obesity by buying bigger pants."--Charles Marohn