Hope you know, Greeley smells like ass. Literally. One of the largest slaughter houses in the US is there (Monford Beef.) Thousands of cattle are kept in holding pens before slaughter. Also several industrial hog farms are around there as well. You can smell the town from Ft. Collins, and even on bad summer days you catch a whiff of it in Boulder (~60+ miles.) Supossedly you don't notice after you've been living there a while, but I can't imagine how.
Given this fact, Greelely is extremely inexpensive (as far as the rest of the Front Range is concerned.) Its actually a nice town. It just smells like sh!t and death.
If you decide to move there, make sure to visit first, to know where you are going. Else, move to Ft. Collins area if you want to be in N. CO.