how much should spend for an inexpensive, yet decent quality, DVD/VCR combination?

[e^e]

and is it not good to have the DVD and VCR in same machine? why is this?

please explain what you can.

also, any recommendations on which one to get and from where and prices would be appreciated!

thanks for your answers!
would like one that is very inexpensive,,yet works good and will last for a couple of years at least.