L.,
I would request to get the opinion of a specialist...my son is 2 years old and has had a struggle with ear infections for the last year of his life. It seems like every cold ends up in an ear infection, but our Pediatrician is against invasive surgeries and has recommended ways to prevent them. Homeopathic drops that ease the inflammation, and alternative ways to bath/wash my son's hair in the tub/sink. His suggestion is to maintain as long as we can and then, when he's older take the tonsils out. Since, my son has already had emergency surgery for other things, I have seen how it can be an intense thing for him and am not eager to put him through that experience.
My son's cousin had tubes in his ear, and after three surgeries a third speicialist had the opinion that the tubes had been unnecessary and all that needed to be done was removal of the tonsils/adeniods. Every kiddo is different, and their reactions to things is not cookie cutter but, after seeing my nephew go through that and how it didn't help him, it just seems unnecessary. After the tonsil removal, my nephew has been healthy as a horse!
I have a tough time with surgery on little ones, and feel there are always alternatives to such harsh measures. You don't have to get confrontational with your PCP, but just make sure you are covering your bases for your son's health and your peace of mind! Personally, I'd rather spend the cash on a co-pay to have someone tell me it's okay than to sit and wonder.
Good Luck!