From what I've read, Sicks Stadium was a minor league park retrofitted into a larger stadium basically on the fly, but even when complete still had very low seating capacity relative to other MLB parks, which definitely hurt attendance. I'm guessing the attendance was far below projections and that really sunk the owners who were already operating on a shoestring budget. This was back in the days where attendance was a huge chunk of overall revenues. No big money TV and radio deals back then. Basically bad management by a couple of guys who had no business or working capital to own a MLB team. I think another local group came out of the woodwork in an attempt to acquire the team pretty late in the game, but assuming all of the debt put their finances in question as well. The bankruptcy was a finagled as part of the negotiations with Selig's group, and it is doubtful the move would have happened without it. I see John Allyn mentioned above, and he and his brother played into this as well in 68/69. The White Sox were very close to moving to Milwaukee after playing 8-11 home games a year at County Stadium. I believe that the attendance at those games was nearly as high as the remaining 70 or so games at Comiskey for at least one of those years. The White Sox were also in a bad financial way, and I believe their flagship radio station at the time was a low-wattage Spanish speaking station. One of the Allyn brothers was ready to sell to Selig and it was almost a done deal until the other brother stepped in and put a kibosh on it. It's also interesting to note that Charlie Finley seriously considered moving the A's to Milwaukee when they were leaving Kansas City, which is something to think about considering the dynasty that they had going a few years later.