I asked multiple places around Phoenix to get my Subaru key copied onto a flip key blank that I already had and either they wouldn't do it or charged about $100. It was a bit of a drive to get to acme but it was worth it.
In and out the door in less than 5 minutes and only paid $39 for the flip key and an additional key.
If you have a Keyport, go here. It's always a hassle going to Walmart/Lowes/Home Depot, since it depends on the person helping you if they will cut your keys for you or not.