I was thinking the same thing! I have 5 bikes I ride on a regular basis and 4 have flats I need to change out (won't be surprised if I go home today and the fifth bike also has a flat - I too live in the land of thorns)... did a MTB ride Sunday where I got 2 flats and my friend also got two...

consider yourself lucky! I am convinced finally to change out my MTB tubes (the rims are tubeless ready) and use Stan's (or some equivalent)...