Too short for money to run out and buy a CD? Too RIAA-abiding to rip it off LimeWire? In that case, you'll find (or, at least, I've found) that your local thrift store is an indispensable source of used music for under $2.

Exhibit A) Obsolete? I think not.
Thanks to you, some iPod-sporting hipster across town decided all his copies of Purple Rain and Like A Prayer on casette and 8-track are just too old-fashioned for him - but not too old-fashioned for the Salvation Army store! For those of us with our tape decks still in tact, these abandoned gems make an inexpensive addition to any music fan's collection.

Exhibit B) Isn't this out-of-print?
Imagine your surprise and delight finally digging that Japan-released limited edition of The Rise and Fall of Ziggy Stardust you've been looking for out of Savers' bargain bin. Thrift stores are often an amazing place to find rare or out-of-print music that some people just don't seem to want, but, fortunately, you do.

Exhibit C) What's this unmarked tape here...?
Believe it or not, probably close to 50% of the music that thrift stores sell is old mixtapes (usually made by their former owner's long-forgotten old boyfriends or co-workers) that others apparently want to get rid of. For you, however, they make an adventurous find, usually an intriguing (and sometimes strange) listen on the way home from your local Second Time Around.