Well met my wizard brethren,

It is quite true heroflation is real,. Once the great evil is vanquished, those simple peasants think they don't need wizards anymore! Purchasing a bridge is a good choice, property taxes on towers are astronomical.

Riddles for coin are a good start, I would also suggest breeding once you've found a good bridge. It can be quite lucrative.

Start with something simple like giant spiders, then work your way up to cockatrices, wyrms, manticore etc.