I'm looking to figure out the resale value of this build I put together last January. Thanks for any input!

Case: NZXT Source 530
Mobo: Asus Z87-A
PSU: Seasonic 850W
CPU: i5 4670k
CPU Cooler: Corsair H60 Liquid Cooler
Ram: 2x4GB G. Skill, red heatsinks on them
GPU1: Asus R9 270x DirectCU II 2GB
GPU2: Sapphire R9 270x Vapor-x 2GB
HDD1: 120GB Intel SSD
HDD2: WD Blue 500GB
Random old DVD-RW drive
Some pci-e wireless card

I just put the same build together on pcpartpicker and it came out to around $1300.
Am I crazy or are not very powerful PC's selling for pretty high prices on ebay?