I've tried my hand at some fanfiction that has him buying, collecting and selling art- mostly paintings- around the turn of the 20th century, which would be easy if you have the money for storage and live forever...you could just wait for that style of painting to come back in vogue. I got the idea after hearing about some Waterhouse paintings that were sold for 50 £ after WW2 because no one wanted them- they got re-sold twenty years later (the blink of an eye for vamps) for several thousand...seems like a lucrative business to be in. That, and the artsy decorating in Josef's office got me thinking along those lines.
[sorry if this is completely obvious to everyone already
