INDIANAPOLIS -- The buying frenzy continues for Butler basketball fanatics who shelled out cash to purchase Sweet 16 shirts, only to return for Final Four items a few days later, including tickets to Saturday's game.

Though Butler has enjoyed years of success in basketball, a Final Four appearance in its home city puts the Bulldogs on a much higher plateau, one the school hopes to parlay into more revenue from athletics and increased visibility for academics.

Watch: Butler Buffs On Buying Bonanza

Butler's allotment of Final Four tickets went on sale on Monday afternoon to current season ticket holders and Bulldog Club members. There was a line of patient fans outside the ticket office to secure their seats.

The line began forming during the early-morning hours, and fans had quite a wait to score tickets.

"I'm very glad I brought the chair so I can take a break every once and a while," said Susan Horan, a season ticket holder.

The line went around the perimeter of the gymnasium. Ultimately, there weren't enough tickets for everyone who wanted them.

"I can't event talk about the total number. That can change," said Matt Harris, Butler's ticket manager. "Unfortunately, we don't have enough to help every single Butler Bulldogs fan."

Wally Cox, 74, who played on Butler's 1958 team under coach Tony Hinkle that made an appearance in the NIT, was able to get tickets.

"I was blessed to … play for the legend. I spent four years with him, and it was the best four years of my life," Cox said. "He's smiling right now. I'm sure he is."

Retailers Thrilled With Butler's Ride

Meanwhile, an Indianapolis business is scoring points with fans by cranking out Final Four T-shirts for the masses, 6News' Julie Pursley reported.

MainGate Inc., on Indianapolis' west side, usually makes Indianapolis Colts apparel, but has turned its focus to the Bulldogs and the other teams in the Final Four.

"It's definitely going to be a big boost for everybody in our business," said Dave Moroknek, president and CEO of MainGate. "We're excited about that."

MainGate wasn't sure how many Butler shirts it would print, but demand appears to be building in a city whose sports fans have adopted the Bulldogs, even if they don't have any connections to the school.

"It's just a guess -- a few thousand (shirts) at least," Moroknek said. "The nice part is being local, we'll just keep printing as demand goes."

MainGate has 20 Butler graduates on staff, providing a great morale boost for those toiling to churn out shirts.

"As soon as they won, I did get a lot of texts and phone calls," said Luke Johnson, a MainGate worker and Butler alumni. "They're just congratulating me and all the Butler grads."

Butler gear took up a chunk of real estate at the Colts Pro Shop inside Lucas Oil Stadium.

"I have nine (shirts), and I may have to come back for more," said Butler fan Karen Sohl.

Retailers expect that Butler gear will sell more than other Final Four teams, followed in order by Duke, Michigan State and West Virginia.

MainGate hopes it will have to warm up the presses to create a whole new set of shirts next week -- those congratulating Butler for an NCAA Tournament title.