I'm completely in favor of something of along these lines, although think the limits on how many can be held, or indeed how much can be spent on them, should be the same for everyone.
There would be certain events each noble can host/throw as many times as can cover the costs, yet not only themselves limited personally how many times a year, but also a total limit allowed in "each realm per year", insomuch as perhaps 8 or 10 hunts, half in winter. half in summer ect
Conversely other things will only be available as something each noble can do a set amount of times in total, not only to prevent them being abused by those with wealthy chars to artificially hike up their Largesse ect, but would also prevent the whole thing becoming somewhat of a farce with feasts and banquets, both normal and opulent, being thrown/held left right and centre all the time.
