I grew up with collies as a kid (4 of them) but as an adult, I was given a Sheltie. One of the best gifts ever, he lived in 3 decades (14 years) and was your typical, tri Sheltie.
We loved him so much, our daughter wanted her own so along came Pepper who only lived until 10. She was a sweetheart, the fastest runner ever and just smart.
When our first one passed away, we searched and finally found a breeder 4 hours north of us. When we arrived, we fell in love with our Murphy. He was almost 8 weeks and ready to go. What a good boy. He held it the whole way home (4 long hours!) We knew then we had a keeper.
Well, little Murphy grew to be 55 pounds and most likely was about 19 inches. He passed this past week - he was almost 12. He was a goofball and was so loving, the best ever.
I'll try to send a picture. Murphy is the big guy. His co-conspirator is Madison, the sweetest girl ever. She is now 8.