Not an answer to your question but in looking it up this killed me…

“In 1965, Alan Stillman opened the first TGI Fridays restaurant in Manhattan. He lived on 63rd Street between First and York Avenues,[11] in a neighborhood with many airline stewardesses, fashion models, secretaries, and other young, single people on the East Side of Manhattan near the Queensboro Bridge. He hoped that opening a bar would help him meet women.”

He paid $5000, or $50k in today’s money in Manhattan. JFC… I can’t even imagine what that would actually cost today.