> As a former DJ with eccentric tastes, I spent tons of time looking for, buying and cataloguing obscure music, then eventually digitizing it. But now I just listen to Spotify and Soundcloud, which already have virtually everything I ever collected and then some.

Not to sound elitist, but particularly as a former DJ I'd have expected you to understand that there's a huge amount of music out there not available via any streaming service (Youtube and Soundcloud rips don't count).

I agree that Spotify & Co. are a no-brainer for most listeners. Great selection, very convenient, unbeatable price. Personally and as a music collector however, I consider buying and owning music as important as ever - I'd estimate that close to a third of my collection isn't available via streaming and there's no way I'd be willing to give up those precious, sometimes rare gems. And, as you already pointed out, even content widely available today could be gone tomorrow - licensing deals end. See Netflix.