That's how I look at it. It's a niche product, so naturally the cost will be higher than a similar regular product. All it has to accomplish is saving just one mess, and it's worth triple that to me.
I use an old plastic one gallon milk carton cut off below the handle and throw the bottom away. use the top part with the handle. Works good and you can screw the lid back on to keep one end closed.
I have the funnel on the Napa link below. I like that it is capped on both ends, keeping the funnel clean. It has a long pencil opening which makes the oil flow kinda slow. So keep the oil inside for a cold weather oil change.