I think it's more that the convenience of Adobe's library of proprietary fonts is appealing to (and relatively inexpensive for) most designers. In my opinion,

I think it's more that the convenience of Adobe's library of proprietary fonts is appealing to (and relatively inexpensive for) most designers. In my opinion, anything longer than a slogan will probably benefit from the tried-and-tested nature of pedestrian typefaces, and is not the right place for excessive design flair. Nonetheless, it is not trivial to install and manage fonts, nor to understand the licensing obligations of free fonts.