Your question isn't making much sense to me :P
But if you are talking about pricing, it depends on the horse not the breed.
A Thoroughbred, like any other breed of horse, has a wide range of prices. You can buy Thoroughbred off the track for in the hundreds, but if you go to some of the sales you can expect to pay in the millions and anywhere in between.
That depends on the pedigree and bloodlines of the horse
The largest racing horse is a thoroughbred. Secretariat is a thoroughbred for example
No Secretariat was a Thoroughbred. A much older breed that help to develop the quarter horse.
Canadian Thoroughbred Horse Society was created in 1906.
Ruffian was a thoroughbred racehorse.
Whether or not a thoroughbred race horse a filigree is a matter of opinion. Filigree means delicute or fanciful and whether or not that is how you describe a racehorse is up to you.
The weight of a thoroughbred horse is dependent upon a number of factors. Some of those factors include the size and age of the horse.
The state horse of Maryland is the thoroughbred horse.
Its a Thoroughbred horse bred with another different breed!
a Thoroughbred
Thoroughbred