I find it interesting all the people that voted "I simply do not care". They obviously care enough to read the thread and vote. Perhaps these people should change their grumpy pants.
I think these printing mistakes are part of history and cool even though I really don't collect cards anymore. They are obviously rarer that one without the transfer. I think that the kind of transfer makes a difference though. If it is say a complete ghost image of portrait vs paint marks, it should be of higher premium because it is "pretty".