Sheet limit is memory driven only so that's why your answer is vague.
One sheet or even a line for each on only one sheet or a pivot table?

Each of my events generates a matrix of data about 130 rows by 15 columns. I
may have several hundred to a thousand events accumulated eventually. My
current computer has 768K of RAM, but I can expand it if that becomes an
issue.

I guess I need to figure out some automated way to take one of my event pages
and replicate it out to 500 pages or so with random variations added and see
how the thing runs in that size.

Thanks.

Bill -- (Remove KILLSPAM from my address to use it)