Eggs aren't alone in getting more expensive these days. How did Colorado Avalanche ownership respond to such an outpouring of support and an influx of demand for season tickets after winning the Stanley Cup? By hiking up the cost of attendance.
I studied economics, so I'm aware of demand increasing for a limited supply and how that is bound to drive up the price of any good or service. To the tune of 20% or more, though? That means the price season ticket members paid in years past was incredibly affordable, or the new prices are heavily marked up.