What kind of substitution can be used instead of halogen in arylketones?

[woohoo]

What kind of substitution can be used instead of halogen in arylketones?
Iodine and bromine not cheap and bromine also corrosive and volatile.
Chloro ketones react slow and require different route, more expensive.

 

[William D.]

There are replacements, but they are even more expensive. Bromine is the cheapest.