I'm probably behind the times here but my last two cars have just had regular keys. I can push a button to operate them remotely but if not I just put them in the lock and turn.
Where a set of keys I had went missing and was eventually found in a garden, having been soaked by the rain, it never stared the car. Luckily I had a spare. The dealer wanted to charge the same as a brand new key to check if it could be reprogrammed. Obviously that "offer" wasn't accepted.
I once left my car keys in a hotel. The only set! I turned the house upside down. I didn't think to phone the hotel because I hadn't driven there (door key was on the same keyring). They had them and sent them back to me for £5. I was happy with that :-)