Short answer: more than any one man should.
Long answer: One of most everything in BD's dick catalogue in varying sizes/colors/options (will update when I update my list), some buttplugs, a few glass toys, a machine, lots of crossdressing equipment (makeup, perfumes, wigs, and clothing galore), lubricants, shibari ropes (~90' worth), various vibrators (for myself/visitors), and the associated storage to hold it all. And a daki pillow but that's not really a toy so much as something I tie a dildo to and ride occasionally when I'm horny and lonely.
EDIT: Here's most of the family. Not shown are the two glass toys I've got on a shelf in my room. That waterproof sheet is large enough to top a king sized bed if you're curious about scale. Couple XLs, larges, mediums, and some other assorted toys. My day job is hell on the psyche and body so I don't get to toy too terribly often. But when I do, I don't lack choice:
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