What should I buy myself for my Xmas gift to myself?

RCs I own:
Losi 8ight-Te (outdoor racing)
Losi Ten-Te (outdoor racing)
Team Associated TC6 (indoor racing)
CRC Gen-Xi 1/12 pancar (indoor racing)
HPI Savage Flux
Axial XR10 (building with all the bells & whistles)
Esky Lama v4 coaxial heli
Esky Belt CP heli
40" Edge profile foamy
40" balsa profile Somenzi eYak-54 (building)

DX3 for racing/Savage
Futaba 4PKS (bought for the XR-10)
Futaba 6EX for planes/helis

I'm looking to buy myself an RC something for Xmas... some thoughts are as follows.... my initial thought was maube something I could use indoor in winter or outdoor in winter in the snow/slush.... or something fun for nice weather alternatively. What does everyone think I should buy? Any other suggestions? I'm a decent plane flyer but need more practice. Love helis despite their hard. Can't go wrong with cars or crawlers.

HPI Monster Energy Falken Tire Ford Mustang GT

Traxxas Summit VXL 1/16

Blade 120 SR BNF + 2nd hand DX6i (to add other BNF helis/planes)

Parkzone T-28 Trojan BNF

MSR X + 2nd hand DX6i (to add other BNF helis/planes)

Kyosho Blizzard SR "Search & Rescue" 1/12 RTR All Terrain Belt Vehicle w/2.4GHz