Congrats to David on everything, but it seems very odd to try & separate "product" from the revenue that it should generate if it's going to be a business.
Let me rephrase your sentence that makes more sense to me: A key part of creating a great "business" is that it continues to support itself.
e.g. ad-driven vs freemium vs subscription, quantity and types of advertising, etc.
Focusing on making the best product/"features and experience" without paying (enough) attention to how it's supposed to make money to sustain itself and fit into the world at large, is exactly how NeXT wound up with fantastic computers and software that no-one bought.
e.g. if they say "tumblr's going freemium" the follow-on questions of "how do we differentiate the experience of free vs paid and how do we communicate the value of the upgrade?" are experience questions that need to be answered and designed in a holistic and considered manner. [1]
[1] And that's why I say those modes are absolutely part of 'features and experience'. Flickr just switched between two fairly-similar freemium models and we power-geeks had a hundreds of comments debate over whether the experience/value jived with the offering and/or was communicated cleanly.
The art of business is to make the greatest product you can without revenue _detracting_ from it.
The Steve Jobs mindset here is that if you just disregard the revenue all together and just focus on building the most absolute great product you can imagine people will use it and love it.
Making a revenue of that is not 'product' it is business, and it seems perfectly reasonable to hire a businessman for that (and not let him influence you too much, and try not to get fired for that like Steve did..).
That's not what Steve Jobs did at all. He first and foremost saw Apple as a business opportunity - who pushed Woz to actually make revenue.
Apple had a revenue model built in from the start.
I am not saying that Steve Jobs did not intend to have profit, I'm saying that reasoning about revenue was not a limiting part of the product establishment.
If it was, how do you explain the launch of the iPod?
With Apple, the revenue model is always clear - even with the iPod - Steve Jobs just knew he could create something that people would buy. He didn't launch the iPod and then worry about how he was going to make money off of it - it was always very clear to him - he was going to sell a ton of them.
Tumblr still hasn't figured out a revenue model. They still have to fit that into their product. Being able to do so & do it successfully is integral to their product - otherwise it's just a cool tool that they're letting millions of people use for free.
That was never the issue with Apple.
If he took money from Venture Capital he might have very, very little impact on bussiness side of Tumblr.
My bet/hope is that with more resources from Yahoo, David will pick and influence more parts of Yahoo than just Tumblr.
The way Marco talks about David's disinterest in money, and his singular obsession with Tumblr, made me think he wouldn't even consider selling it to someone else.
I'd be curious to hear his reasons for selling, as oppose to doing a strategic investment like Facebook did with Microsoft at one point.