I am sad to see it go to, but like many here, I felt it was coming for some time: when I flew in the early eighties in southern California, I hung out with Jim Meister (Meister Scale) and he was flying giant scale (1/4 scale was giant then). This kind of flying was often pushed aside, labelled "dangerous" because too big.
Fast forward to mid 2000's, and everyone can buy a quality ARF 30% scale or larger, with better and safer equipment than was available prior.
Knowledge on the set up has also been more readily available than it used to.
It may be the biggest contribution from the IMAA: it did such a good job at representing the Giant Scale community that we have become main stream...
Thank you those who did such a great job promoting it!