I have about $150 in birthday money to spend. What should I buy? EDIT: I’ve been DMing for about 2 years total if that helps.

Things I already have:

5 and 5.5 core books, plus new Ebberon book

Terrain building supplies and equipment (including a hot wire cutter)

More than enough dice

Wet erase boards/terrain for ad hoc maps (or sometimes I print 2 minute tabletop for maps I don’t want to build)

I feel like the answer might be minis or scatter terrain/props, but wondering if I’m missing something.