::sigh:: I love Greyhounds. One day, when I trick my husband into letting me have 2 dogs, I will have a greyhound (to add to the pit bull). My parents rescued 2 greyhounds from tracks and we had them for 10 years or so each.
Scooby raced for 6 months, if that (we got him at 2.5, in order to race they must reach maturity which is 2.0 years. He had minor health issues that the race trainers didn't feel like dealing with. He had no fur on his hide from the electric prods in the race box, he came to us with sores and patches of missing fur. A $20 bloodtest determined that he had a thyroid condition, and once on medication he was good to go. He left us in the summer of '08 after struggles with arthritis and a few other health conditions. I miss him terribly.
A few years after Scooby, we rescued Daphne. She raced for much longer, and it showed. She was always skittish of men (most of the people at hte track are men), even after living in our safe little home for 10 years. She had no health concerns, but came to us in even worse physical condition than Scooby. I don't have a LO of her (which I will need to remedy immediately), but she left us in June of this year.
Depending on how "fresh" off the track they are, the physical condition can be a BIG surprise. Both dogs had sores, bare patches of fur, etc. They INHALE their food, as normally at the tracks they are given 5 minutes to eat and do their business, before getting stuck back into a crate. It's helpful to get a standing food/water bowl for them, as since they are tall they can have digestive issues (lower bowls = more air in the tummy, which can be a bad thing). Some of them can no longer tolerate being crated, as it reminds them too much of the poor track conditions (but this is an individual personality type thing). Scooby was an absolute food hound and would eat ANYTHING left out within reach. It was as if he never ate enough in his first years, was always trying to make up for it (he figured out how to move the stool in the kitchen to in front of the fridge, and then how to climb it to get at the bread on TOP of the fridge - SMART!!). Things he ate included an entire corned beef, 5lbs of gummy bears, hershey kisses, a tub of potato salad, numerous loaves of bread, countless unattended sandwhiches, etc.
They are SUCH loving creatures. Super gentle, VERY laid back and relaxed, and very loving. Scooby used to purr (his teeth chattered and that's what it sounded like) when you pet him and he was very content. As sight hounds, most (Scooby did not, lol) have a very high prey drive. That means NEVER being outside without a leash. If they take off, they often can not find their way home. (And really, never without a leash. My father thought he had "trained" Scooby well enough to just run around our house, and we lost him in the neighborhood for several very long hours one day.) They really make incredible family pets, we loved ours.