Yeah!  Exactly. 
Surely there is an audience of such players who, having looked at such pictures, will become interested and try to play.  Maybe he will remember his experience of the game many years ago, when such a design was a normal practice.  But besides that, many people may like the primitive design because they don't care how it looks, but they care about how it works.  And if it works without problems, then such a casino will suit them.  And here, of course, it is important to ensure the good uninterrupted operation of the site. 
It is important.