Podcasts are relatively inexpensive to create. As a result, the quality in published podcasts is extremely diverse. Corporate podcasts can be very polished audio productions while hobbyist experimenting with podcasts may have dogs barking and children screaming in the background.
After all it is the content that matters right? Well no, not exactly. Remember when black and white televisions could "kind of" tune into stations it was just a hazy effect. How many continued to watch the grainy or flipping screen. Rarely was the show so riveting did it hold the interest of the viewer. Unless of course the content was forbidden to young eyes (as in the playboy channel).