If I may add another option, buy a meat grinder and do it your self if wanting deer burger or sausage. I've done my own for the past two years. Average price for deer thats already quartered up at local butchers here in NC is 60-80 bucks for med-large size deer. I did 8 deer last year for not even half that.
Just throwing that out there. It's alot easier to do than one would think. I know I wouldn't use a butcher agian for deer.
Disregard if needing a butcher for some other reason that processing deer. Good luck!