Not while cell coverage is spotty and wireless companies charge out the ass for data. Fact is, there has been too many situations where I've had weak cell access. Even when access is good, dropouts happen and I hate that.
Paid-for streaming services allow you to store the music on your mobile device (which would usually be done over WiFi), so a cellular connection is not strictly necessary. It's not a whole lot different than a portable MP3 player in that respect; instead of transferring files from your computer to your MP3 player before you go out, you transfer files from the cloud to your phone before you go out.
That said, I currently have a fairly cheap cellular plan with no real data limits, so in practice I don't often pre-cache music (and then, I tend to listen to things pre-cached from my owned collection on Google Music when out of range rather than pre-cached Spotify). Perhaps if I had to change to a plan that required me to be more careful about pre-caching, streaming wouldn't be as attractive to me.
Also, I hate to be at the mercy of a 3rd party as to if music I want to listen to is available, or will remain so.
Yeah, if I was 17 and hadn't yet had time/money to curate my own music collection, I'd definitely be concerned about this. But since I'm old, I already have a giant collection of owned music from 2012 and earlier that will be more than enough to sustain me for the rest of my life if Spotify disappears. (then again if I was 17, I probably wouldn't give a shit about not having a collection socked away for a rainy day, and wonder what that fuck anyone wants to "own" music for in the first place!)
I will stream exclusively as soon as Artists are paid appropriately. Until then I will buy digital copies of things I enjoy routinely.
I've already done the math here
a few times showing that streaming has the ability to provide artists with just as much income as paid downloads/CDs, though the time-based rate of that income may be somewhat different. But sure, I guess some people see even the "standard CD level" as an inappropriate level of income for artists to receive.
I wonder what percentage of the new releases I like is actually available on Spotify. I will never take the time to figure it out, but I doubt it is much higher than 60%. You limit yourself in so many ways, my friend.
I feel like I/you figured it out the percentage for iTunes/download-retailers at some point, and if so, it will be almost exactly the same for Spotify, since the catalogs are very similar. 60% might almost be too high. *I* find like 95% of the stuff that I care about on there, but that's because a lot of the stuff I'm looking for is from new-ish touring bands, who seem to make a point of making their stuff available everywhere in every form. And if it's not there (Century Media!), oh well, then I just won't listen to your stuff, and take up an interest in a band who *does* have there stuff there. If you somehow became limited to Spotify-only, I'm sure you would find a similar way to survive, much like how you fell in love with your Lilith Fair bands back when you lost track of metal.
Neil