!00 Dollars seems to be the going price at reputable places, even though that seems to be too high in my mind. Supposedly, it is very easy to actually program the key itself by following a certain sequence of actions. I once read what the sequence was, but I had no need of an extra key at that time, and do not remember where I saw the info. I would think you should be able to google programming sequences. Anyone trying to charge more than $100 is plainly out to rip you off for being in a helpless situation.