Mine was $15,000 but I too chose a facility very close - fill center is on an adjacent property to my work. I really liked my surgeon but once fills are started I go to a surgery center and am filled by a nurse practicioner who does fills all day so I feel comfortable with her expertise.
My cost also includes 1 year of fills and support groups etc. I could have gone to Dallas, an hour away, for $9999 but having had fills I now know distance could have been really problematic.
The cost of initial surgery is only part of it-i would opt for the most convenient. Hope this helps a little.