It is so hard to lose a bully, especially two! I lost my first about 10 years ago and it took me a long time to get another. They are such a special breed! I have learned so much from this site before I brought Zeus home.
I think you did the right thing at the pet store. And honestly if I were young and buying a dog, I'd appreciate the advice and foresight. Looking back on dogs I've owned when I was younger, I must say I was a horrible mom!! LOL From all I know now, I think one may have had skin allergies - and another had kidney stones and had to be put to sleep - and those both could be resolved with a better diet!