A crusher and a press are 2 different pieces of equipment. The rollers on the crusher are set far enough apart so that it doesn't even touch the seeds. The seeds stay whole. And you can crush other fruits with it too. We use a crusher on strawberries when using fresh strawberries if we don't have enough freezer space to freeze them beforehand. Freezing eliminates the need to crush, because they get nicely macerated thru freezing them.
A press is for pressing the cap of fruit and its skins to extract color and juice. We bag nearly everything we ferment--and when the fruit or grapes are bagged, it makes using a basket press much easier. If you decide on a press, you have to think about either a basket press or a bladder press. You have to replace the bladders from time to time. A basket press never needs anything BUT the fruit will squish out from between the slats unless you bag the fruit or use a screen inside it to hold the fruit in. AND, as I said before, a press allows you to press the fruit before fermenting to use only the juice, if you so desire. Both of these pieces can often be bought used thru online sources so that you don't need to spend $400 for each of them in new condition. You can also buy crusher/destemmers----and also manual operation or motorized.