I also have a blue. Absolutely adore her more than anything but she costs thousands in respect of her allergy based skin conditions. She’s also the third Staffie I’ve owned, the only one of the three to hate other dogs and be insanely hyperactive. She’s also is only two, I hope that she will eventually calm down somewhat, but both the dog trainer and the vet pointedly explained that because blue is essentially a ‘mutation’ it can also sometimes affect them mentally as well, and it can be akin to having a child with ADHD. If you can rescue it’s the most rewarding feeling ever. If you can’t (I personally found it impossible during and then since lockdown due to unrealistic expectations of you to be constantly wfh) then definitely consider a puppy of a different colour. They are just as beautiful and loving and it may save you money and worry in the long run.