The Courtyard at Marriott, SpringHill Suites and Fairfield Inn are now open. Meanwhile, JW Marriott is still under construction and one year away from accepting its first guests.

Supercross and gymnastics fans have filled the new hotels which are within walking distance of both Lucas Oil Stadium and the soon-to-be-completed expanded Indiana Convention Center.

"People are now seeing. We showed them plans for a long time," said Bill Benner of the Indianapolis Convention and Visitors Association. "They can actually see that we have the product that we have, and it's very encouraging. Indianapolis has been able to create a buzz around the country."

Marriott General Manager Michael Kauffeld said his hotel is sold out for the upcoming Final Four but has some rooms available for the Big 10 basketball tournament.

"I think what we're doing is giving meeting planners confidence when they actually come to town as they tour this great facility, world class airport. They see what's going on at the convention center."

White Lodging of Merrillville has invested $450 million in the complex which will add more than 1,600 rooms to the city's downtown lodging inventory. White Lodging has also given $5.4 million to the ICVA to promote Indianapolis tourism.

The new rooms come on line at a time when the economy is starting to bounce back and event planners are booking space for upcoming conventions.

"Those things are all coming together at a very nice time and the fact that they are all coming together at the same time is really very good because it continues to put Indianapolis on the radar of convention planners," said Julia Watson of Downtown Indianapolis Inc.