Why is revision breast surgery so much more expensive than the first procedure?

Revisionary surgery is more challenging and requires more expertise on the part of the surgeon and frequently more time than the initial procedure. This increases with each subsequent procedure. This is the reason why patients should seek more than one initial consultation and do their homework before they have a bad outcome to decrease their chances of obtaining a result that differs than their expectations.

Revisions of breast implant procedures that have had issues often take more time, require more experience and judgment, and may need more attention throughout the recovery process. It is a special area of expertise so it is typical for it to cost more.

Great question!  Sometimes, revision breast surgery can be more difficult, take longer, and require various surgical products/devices in order to achieve the aesthetic goals.  Therefore, the costs can rise and actually be more than the original surgery.  You may want to visit with several different plastic surgeons in order to compare techniques and costs.  
Thank you for your question!
Dr. Schreiber, Baltimore plastic surgeon