Salt Generator are def. worth the money in the beginning and as time
goes on they will benefit your budget. I would stick with Goldstar
brand. They are the leader in salt generators. The cost will be buying
the generator and then all the salt. You have a big pool so that will
be a lot of salt. You will still sometimes need to shock the pool but
over all the generator will superchlorinate. Just a note, every pool
in Disney World runs a salt generator because it's less maintenance and
you will experience less maintenance. So if that is what your going for
than this is the product for you.

On a more techincal note if you were interested what a salt generator
is, is a piece of pvc pipe that needs to be installed in your return
line. Inside this pipe are two titanium plates that generate an
electric charge causing the salt in your water to form into a chlorine
gas. You should keep your pool running at 3ppm (Parts per Million) of
chlorine. Most generators come with a button that you can push to super
chlorinate your pool. That brings your chlorine up to 10 or 13 ppm
which is called Breakpoint Oxidation. At that point any dead bacteria
killed by chlorine gets gassed off (oxidation)

If you have any other specific questions just relpy to the discussion.

http://www.swimuniversity.com
http://www.niagarapool.com