You're right. It would depend upon the art form. Nowadays more people are interested in things that are immersively captivating with low effort, such as television and video games. These provide instant feedback and gratification compared to something like poetry. Even visual art is more engaging to most. Combine that with the fact that poetry in the western world has always been something of a niche craft with the majority of poets dying poor and it's not exactly a pretty picture, financially. Luckily, the sheer pleasure of making poetry and sharing it continues to cause it to seem a worthy pursuit for those of us that catch the bug :-D