Only the DVDs for BtVS and Angel (and TBH, my sons bought them when they were first issued); all the canon comics as TPB and also all the Library editions. The Library editions are pretty but take second place to my Absolute Sandman volumes (massive leather (?) bound and in slip cases - a work of art) and a collection of academic books (some bought, some "liberated" from work). I also have the OMWF vinyl and a signed script but they were gifts. I wouldn't have bought them. In fact, I have more Sandman/Lucifer memorabilia than BtVS (again, these were gifts).