Do music stores even matter anymore? Selling DRM-free MP3 downloads is a commodity business if I've ever seen one. The only trick is getting labels to sign on

Do music stores even matter anymore? Selling DRM-free MP3 downloads is a commodity business if I've ever seen one. The only trick is getting labels to sign on. Besides, syncing is an essential part of buying MP3 music: you don't want your music library only stored on your easily-lost cellphone, do you? Anyone know if Google's music store lets you re-download songs? If not, I imagine there's going to be more than a few people who have to re-buy a bunch of albums because they lost their never-synced phone.