Things have gone crazy

My last few posts have indicated the market was picking up. In just the last 2 weeks things have gone crazy. We have received contract offers on every one of our "for sale" listings and all but 1 of our "rental" listings. For one of our for sale listings, I had 2 agents call me the same afternoon just after we ratified a contract, saying they wanted to submit contract offers on the house. I had to tell them we were already under contract. One of them said her client liked our house so much that she would wait to see if we really went to settlement or not before deciding to make an offer on some other house. Wow! Where have all the buyers been the last 6 months??? - Bob