People like to pretend they are sane, so they look down on everything that doesn´t seem to make any sense. The comedy of Marx Brothers defies everything rational and commonplace; It´s anarchy. Perhaps that particular form of anarchy has become too old to appeal today. Nowadays we have punk and...well, something ambiguous and post-modern, I guess. It´s sad, really. Groucho is my source of preposterous inspiration, together with Monty Python.
I´m glad you like them too, Merteg. You can´t be a completely bad person.