Size changes of issues

I am sure there are good reasons for changing the physical size of a serial. Normally, this is a not an issue. :) However, those publishers who change sizes during the middle of a volume create havoc. Then the issue will not display in a stack very well. It causes minor problems when binding as well. And sometimes the format or layout is changed sufficiently that it complicates trying to find something in the newer issues. And then there are always the publishers that change sizes for one or two issues and then revert back to the original size -- causing a whole another set of nightmares.