I've been here a while and I've been through many phases.
Cars, Audio (Large scale), photography, electronics.
Cars, Audio and photography.
Headphone Inventory
Sennheiser HD600s
Brainwavz HM5s
V-Moda Bass Freq IEMS
Digital silence DS321D IEMS
Headphone Amp Inventory
FiiO E10
Several cmoy amps

Soon to be schiit vali and possibly a starving student/other DIY amp
Source Inventory
Asus Xonar D2 sound card
Nexus 5 and Nexus 7
iPod touch 4th Gen
Cable Inventory
A pro audio business worth of cables... 'nuff said
Power-Related Components
Once had a 60kva gen set with 32a 3 phase for a music show if that counts.
Other Audio Equipment
Too much.
Talking speakers, amps, mixers and more (Pro audio)
Music Preferences
EDM (Drum and Bass, dubstep, trance etc), Rock, Alternative, Top 40 pop.
Photography gear!
Sony RX100, GoPro and Canon 600D.
Sound tech and a student.