Originally Posted by mafoofan
The MXR Carbon Copy is pretty inexpensive ($140). But most will be much more. The EHX Deluxe Memory Man is probably the absolute standard of the genre and it's over $300.
Didn't realise they'd become so expensive over the years.
BTW, I'm not sure if they're still making them but the best wah is the Ibanez WD-7. Cheap, rugged, excellent features. A side switch to stomp on rather than having to smash the pedal itself. Or can go in auto-on mode. Pretty much all parameters adjustable, the knobs push in so you don't knock them out of place with your foot, and it's optical so you don't have to worry about pots wearing out.
It's not the nicest looking beast but it's the most effective and nicest sounding I've played.