If you never tried rosin before the cheap hair straightener method is enough to get an idea of the whole rosin thing, its very affordable and simple to handle. If this gets you hooked you could advance to the presses I would suggest. I'm still happy with the hair straightener method for pressing a gram from time to time. The investment of over 400$ for presses would take a very long time to benefit from the better revenues, if ever. At least in my case (consuming 2-3g of flowers a month).