WEB has paid as high as $367?b? Any takers?

Well, to be picky, the top known [average in a month] price paid has been $550,813.96 per A share, which divided by the 1500:1 economic interest ratio gives your $367.20.

But since you're quoting the figure in B shares, one might consider the A:B share price ratio.
Management seems to have a strong preference for A shares lately--the highest known [average in a month] price to date for B shares is $357.22, ten bucks lower.
So if you're talking omens about the value of B shares, arguably that's the number to consider.

For those who like to read too much into things:
The preferred ratio of A to B price of management seems to have changed.
If you look only at the months that they bought both A and B shares, the ratio of the average A price to the average B price has been rising on trend for quite a while.
That ratio has been rising at about half a B share per month in the last 4.7 years.

This could alternatively be partially explained as follows:
They do like to get a good deal. During sharp selloffs when they might be buying more, B shares tend to sell off harder, and that's the days they buy the most, so the A:B ratio is higher on those days, skewing the averages.

Jim