lets see...got the printer in February this year...
purchased 4 rolls of ABS - all different colors, at a cost of about $125 with shipping, and we have 6 rolls of PLA at about $165 w/shipping - again, all different colors... so almost $300 in filament costs...
haven't killed any of them yet, but have a couple that are getting pretty low...
as to what have I printed... naturally upgrades for the printer - lawsy carriages (more than once, LOL), Y axis idler pulley brackets, X motor fan mount, an E3D v6 mount, a bunch scale RC stuff, and my big thing right now - brain teaser puzzles. 
SD4 #1 & #2 - Lawsy carriages, E3D v6, Rumba controller board, mirror bed plate, X motor fan, upgraded PSU & Mica bed heater
SD4 #3 - in the works ~ Folgertech FT-5, rev 1
Printit Industries Beta Tester - Horizon H1