> I love artists and design, and am shocked this has not happened yet, so Im rooting for you.
I really appreciate it! And I appreciate the thoughtfulness of your questions.
One aspect is that we're not business people looking at this problem in a cold, analytic light: we care about the wellbeing of artists and the joy that people get from having art in their homes. I know from my experience as an artist that most artists are suspicious of new businesses – but we've found a way to work with artists where they really trust us. We do more for our artists than just provide a self-service tool for them to list commodities and get some sales – we coach them on selling; we help them build community with other artists; we're building new features to fit their workflows; and we'll even hop on the phone with them and let them vent to us about life as an artist, haha.
Artsy seems like a great platform, but we're mostly targeting a different type of buyer than they seem to be. We're also working with artists directly, rather than through their galleries. So, despite both being online art marketplaces, I think it's a bit of an apples-to-oranges comparison between us and them.
Regarding the rest of the startup graveyard, when we talk to our users on the buyer side of our marketplace, they haven't heard of things like Saatchi, or even Artsy, in many cases. So I think that, to a significant degree, the mental category of "place to buy art online" is still open, at least for people who aren't already experienced art collectors.
So I think in our case the answer is timing + obsessive attention to our users.