Ear reduction surgery
is available and involves either the wedge previously mentioned or a more elegant type procedure that would resect a considerable amount of the scapha (large, flat part of ear) as well as some of your lobe. Fees will vary by the extensiveness of your procedure as well. See a local board certified plastic surgeon for more information and options. You must be clear in your explanation as to what you expect and what parts you want smaller so your surgeon can better understand what results you want.
Smaller Ear Surgery
As you point out, an otoplasty will not make your ears smaller. A wedge resection of the superior helix and concha should produce a smaller ear. The total cost of surgery is $4100 which includes the board certified professional fee, board certified anesthesia fee, and medicare approved surgicenter.
Hope this helps.