I try not to let mine swell too big, as merchants come & go here so frequently, you might just miss out. I can't even begin to tell you how much I've purchased in the past, only to go back & re-download to find the artists are no longer here & the item has been removed >:(. At least I have backups, that said it is much easier to just redownload than search thru numerous disks or load up the external(which I only recently got in the last few months).