I know you guys don't know me. I have not posted here before tonight. But, I read the forums a lot and I really enjoy everyone's ideas about what drum corps was and is.
I thought I would respond to the question about early DCI (the Combine and the first two years of DCI) leading to the end of many of the great old drum corps shows across the country.
Sometimes, we forget that DCI, especially in the first few years, was the corps. There was not something separate from the corp member management. Decisions about scheduling were made by the board made up of the corps managers. I was at some of those meetings. Sometimes it was the timing of the major independent shows with prelims and finals, sometimes it was the lack of cooperation with some basic DCI requests (like reducing required parades prior to the shows), sometimes it was uncooperative show managers, sometimes it was set dates that didn't fit the travel schedules and sometimes it was the money that led to the lack of DCI participation.
I don't know if that turned out good or bad, but touring drum corps survived when it definitely would not have without DCI.
By the way, my favorate show was the Casper Drums Along the Rockys. Even when the wind was blowing at 40 from the south.