hmmmmmmm....maybe I should not have purchase my Sigma Art....... na I think you're still good. That's a sweet lens. I have the Sigma 35 and keep trying to justify my need for the 50 as well. I think I'm probably going to end up getting the Canon 24-70 2.8 ii instead but it's an excellent lens.
Brian, I have both. I had the same debate with myself months ago after already being a 35mm owner. Buy the damn thing. They seem like similar lenses on paper but in practice, the 50mm will do much better with portrait situations if that's what you do because the distortions of things like facial features while prevalent on the 35mm is not a factor on the 50mm. So it's all about what you're trying to do with the lens vs. your shooting needs
Thanks for the input. I just bought the Canon 70-200 IS ii so I have to wait anyways but I do know what you're talking about. Just hard since they aren't very far apart. I was hoping Sigma was going to announce a 85mm ART lens at Photokina but they didn't so I went with the 70-200. At some point if they come out with an 85mm ART I'll have to decide between it and the 50mm ART but I think I'd be learning towards the 85 assuming it's as good as the other ART lenses have been.