That's a bold assertion, but based on the fees I see for disposal of real goods, not close to plausible. Adding another $10 onto a washing machine for a "disposal fee" still isn't going to make the $500 washing machine suddenly comparable to the $1100 one. And if you're adding more than about $10, you're not adding an "environmental real price", you're just taxing people because they aren't doing what you want them to do. The environmental "real price" of a washing machine simply isn't in the hundreds of additional dollars.