Multiple locations
www.svdppitt.org
Upside: The cheapest place to buy vintage togs is at a thrift store. Downside: You might have to look longer. Upside: A lot of folks love the treasure-hunt aspect, and nothing is sweeter than scoring a kicky retro two-piece suit for less than $10.
Other Finalists
2nd: Three Rivers Vintage, South Side
3rd: Eons Fashion Antique, Shadyside