If a bar has the sort of foot traffic/clientele/supply chain to support 366 different beers on tap then good for them, some do, it's not an easy operation to run. They also usually buy mini-kegs for quick turnover. If they are serving garbage quality beer that's been sitting for months then they probably wouldn't be in business.
The place I used to frequent that has around 25 beers on tap usually had a turnover of about 50% of taps/week from what I saw.
Shrug the Delirium Café in Brussels has 2000 beers on tap.