I want smaller implants! I think I went too big. How much would it cost to have them removed?

I am sorry to hear about  your concerns after breast augmentation surgery.  
Generally speaking what breasts look like after explantation depends on several factors such as: the quality of skin elasticity (the better the elasticity the better the skin will bounce back), the size of the implants used (the larger the implant the more trouble you may have with redundant skin), and the amount of breast tissue present at this time (which may have changed since the time of your breast augmentation). Life experience since your breast augmentation procedure, such as pregnancy or weight gain weight loss, will potentially influence the factors discussed above. If you take these factors into consideration and apply them to your specific circumstances you may get a good idea of what to expect after the implants are removed. I would suggest that you select your plastic surgeon carefully; it is likely, that working together you will come up with the best plan of action.  When it comes to costs associated with surgery, you will find that there will be a lot of variability. You will find some average costs of surgery listed on this website and on individual plastic surgeons' websites as well. You may find the attached link, dedicated to breast implant removal surgery concerns, helpful to you as you learn more. Best wishes.