KEYs

I lost my one key and now they tell me that I have to buy a 1400 new computer in order for the new key to work. I'm I being hosed? Also,the dealer kept saying that it happens sometimes the people from smart tell me it's every time. Any advice besides,don't lose your key. we were going to get a new one but they said it was 200. but that was a lie. seems this car is like a needy women every time we turn around ugh love her but I think it's time to break up