I agree with RSN. I think it's a fad.
Citing articles of someone else's opinion as proof doesn't really mean anything. The only thing that matters is if it happens. As an example, there are tons of articles that indicate it is a fad as well...
Rolling Stone That doesn't mean there's not money to be made though. With the sale of records people do want to play them on something. If you are pretty much the only company making a player, you pretty much are the option for people to play it on. That's just smart business. There is always money to be made in niche markets.
It doesn't however point to it ever being the dominant way people will consumer their music.
I get why people like it, but many times convenience and availability trump quality.