ImUrOBGYN Hit it right on the dot. But DO NOT Pay attention to anything TurboMark has to say because judging by what he says, he has no experience, and purely just the rumors float around the 7m constantly.
They can be had for pretty cheap if you keep your eye out for them and dont jump at the first one you see. But lately Ive been seeing the general pricing for them to be gradually going up. If you have any questions regarding anything about them, dont hesitate to ask.