I'm sure most people know in their heads why we all care but I'd like to explain it in words for others:

Greg is probably one of the few people in the world who offer a product to others and gives some of the best results for the $ and the best service. He is clearly just a great guy by how he runs his business.

Most of us recognize how Greg is such a great guy by everything he says and does.
On many occasions I have stuck up for greg and said how hes such a great guy only by reading the infinite amount of posts showing him as such. I don't own any parts from him but I show such dedication and posiive outlook for him as if I was a main stockholder in him
Its not the case but this is why we care for greg and when greg is in need of a little support, albeit from most of his customers and friends; we are able to come through and give it!

Keep in there Greg, Life is hard but we value you and what you do for others.