I like both as well but appreciate the history associated with postmarked and written cards. Many issues we already know much about, but much of what we know about known issues is due to finding an example which has been postally used. So, those that have been written and postmarked are really research gems and that's one of the aspects of the hobby that really gets me going.
The postcard below would likely have been not too hard to research through the records of the company and the age range of the subject, etc. but the postmark and writing surely help to make an easy task and complete the picture.
