I've hit all those plus myself twice AND an antique Mercedes-Benz I'm restoring. That one really hurt! Fortunately, no damage to the Benz but the CP was a mess. I had CF blades on it too. Another $30 gone. Oh well.

I have superskids on mine (the V2 ones from Helidirect). After breaking the stock landing gear a few times, usually taking out the blades too when it fell over, I decided they were a worthwhile investment.