[RC-Monster Mike]

You may be missing the point - of course they are cheaper, as they didn't incur the R&D costs of the companies they cloned. If I stole cars and sold them, I could beat the price of any dealer around in the price/quality equation by virtue of lower costs. The point is that this is a short sighted and selfish way of thinking(supporting the thieves).
You may never truly understand until you have something stolen from you that you poured your heart and soul into(and maybe your life's savings). It is easy to justify when you don't see it for what it truly is(stealing) and it isn't your direct personal loss!
Hopefully you never have to experience this, but maybe you have to in order to really see it.
Don't get it twisted, though - competition is good and absolutely necessary to keep things honest and fair, as well as drive forward. Using/stealing property(intellectual, tangible or otherwise) to do it, however, is counter-productive in the long term and just plain wrong - supporting such activity amounts to tacit approval. Everyone has probably done it at one point or another - perhaps unknowingly and perhaps knowingly. The almighty dollar(or whatever currency you might use) rules and this is never going to change - one might justify and knowingly purchase a clone when they can't afford the real thing or might not recognize that the clone is a thievery to begin with and purchase it - whatever the reason, the innovator is punished for innovating in the long run by virtue of lost sales.