It's currently pretty even, despite higher margins for AWS, and "already" is saying a lot despite how long AWS has been around. I covered this 64 days ago in [0], but here's the relevant part again.
Looking at Amazon's Q1 2016 Financial Results [1], page 8, we see that net sales of non-AWS amounts to ~$26B, and AWS is ~$2.5B. From the Segment Highlights section (same page), AWS sales is 9% of total sales.
AWS beats non-AWS income only because there were losses in international; ignoring international, it's a $16m difference.
Looking at page 14, Media sales in North America and International sum to $5.6B. Media sales alone is double AWS's sales of $2.5B (page 13). Profit margins are way higher for AWS, so there's still a lot of room for a larger income difference between the two segments.
That's fine so long as they're not losing money. Someone can fill us in about how much Amazon sunk into startup costs before breaking even. Amazon is perceived by customers as usually the cheapest place to go for products/services.
My concern is that Uber is already considered "expensive" by customers, and that's at a massively subsidized rate - how will customers react when Uber wins the price war, destroys the competition, and then has to actually raise prices? and not just raise prices to break even, and not just to make a profit, and not just to grow the currently non-existent fleet of physical vehicles (self-driving or not), but to also make back the US$billions lost to win the war of attrition?
Looking at Amazon's Q1 2016 Financial Results [1], page 8, we see that net sales of non-AWS amounts to ~$26B, and AWS is ~$2.5B. From the Segment Highlights section (same page), AWS sales is 9% of total sales. AWS beats non-AWS income only because there were losses in international; ignoring international, it's a $16m difference. Looking at page 14, Media sales in North America and International sum to $5.6B. Media sales alone is double AWS's sales of $2.5B (page 13). Profit margins are way higher for AWS, so there's still a lot of room for a larger income difference between the two segments.
[0] https://news.ycombinator.com/item?id=11951577
[1] http://phx.corporate-ir.net/External.File?item=UGFyZW50SUQ9N...