Hi Mike,
I've used the pressure sensitive adhesive and laminates since approximately 1984. It was then that I switched from heat to a non-heat roller mount/laminating machine sold by Interlam. It was the crank style and very well made, so no problem. Having two hands free does have some advantages, but it wasn't enough of an issue for me to pop for the extra $$$ at that point. About 10 years ago(I'm guessing) Interlam shut down their operation in the Toronto area and one of the guys there called to let me know that they had a quantity of adhesives and lams to sell, if I was interested. The price was right so I took advantage of the offer. They also had a 25" motorized(foot pedal) operated machine almost identical to the one I had been using for many years. It was still in the crate and the regular selling price was $3500. I got it for $1200 and have been very happy with it, no problem at all. Again, a very well constructed German made machine. I still have the old crank model in case the motor gives up on this one, but it's a real workhorse. I can mount on up to about a 2" substrate, although I've never had any call for that. If you're going to be mounting on Gator Foam that's not a problem, but laminating does require a bit more pressure, so I'd be careful about that on regular Foam Core material. Of course the standard mount boards and Masonite are no problem at all. And, once you have pre-coated some boards with the adhesive it's a matter of minutes to do a rush mounting job. Very convenient! I'm sure you will like the cold mount/laminating system, but of course it's your choice whether to go motorized or not.
One more thing to look for. Make sure the machine has a take-up spool for the laminate release paper. That can be a bit of a hassle with a crank machine, but nothing that can't be conquered with a bit of practice.
Gary