I suppose if you couldn't remove the liners and wash them... but then, you'd be better off putting that money towards a more expensive helmet with removable liners anyway...
I'd rather pull them out and hand wash them. That $150 could go to paying off the bike and getting closer to the Ducati of my dreams.
Just when you thought you had seen everything...what a waste of money. Like you said...just buy a better helmet. Or buy a really cheap one and replace it when it smells