There are always many possibilities and what you're saying is one of the strong ones but with what's coming on the horizon could mean almost limitless cash for TLM every month and I don't think he's going to just give it away for (pardon the pun) a song. Lolol!
Let's say he accepted a buyout offer of $30M for BUNM. With 1.2M users at $2 per month for the service, that's 2.4M monthly or $28,800,000 per year.
And that's at only $2 per month. Napster charges $5 and they're making a lot more money with a lot fewer users at present.
Keep in mind that the average user doesn't have the tech savvy to go searching all over the internet looking for foreign sites where they will be able to continue finding pirated music. The average user is also on the lazy side and wouldn't want to go through the trouble of disrupting their current system and playlists just to avoid paying a few dollars a month. Napster has already proven that.
Ask yourself- After you see that the vast majority of services are charging for their music players and Hypster begins charging $2-$5 along with the rest of them, would you switch over? Would you go searching all over the internet for different sites which may not offer the same features,music, and ease of use to which you are accustomed? If you did switch, how would you know that after going through all the trouble of discovering a new site, registering, constructing a new playlist and everything else- that YOUR NEW COMPANY wouldn't start charging the very next week?
I'd say that the average person would come to that conclusion while jotting down their list of songs for their new playlist. After they had copied down song #42 or #56 on their list they'd realize that the potential was there and would just say "forget it", whip out the debit card, curse TLM for being greedy and go back to listening to their music.