I wish people wouldn't pay that. In my mind, it monetizes an item that has no intrinsic or nominal value and places a perception of 'value' on an item like any other part of car. It makes sellers withhold info for money. If people complain how the introduction of money changes the hobby, this is one area where the greed factor can be removed.
It's also unnecessary. If people understand how the tag will be used and the data aggregated, they see a higher purpose in the hobby and will provide info for no cost or the cost of shipping. Every tag is a piece in a very large puzzle. Put them all together and the picture becomes clear. When you start introducing a perceived value to a /6, wagon, four door, C body, etc tag, it makes it much harder to fill in the gaps.
