Where we live, we have very few water pokemon, so even though it was just commons we had fun catching Slowpokes, Psyducks and Magikarps. Caught a couple Bulbasaurs and Dratini too. We did fill out our Pokedex some, but there wasn't an amazing source of rares anywhere. And of course there are a TON of pokestops to spin for experience and an always full bag.