If you are going to the woodworking show, I went to the one in Kansas City. I didn't see any dust and stood around for quite some time to talk to the representatives. They were occupied with tire kickers for hours though that's not their fault (one man talked to them for several hours alone from the time I got there to the time I left). I didn't see any power cords to their units, so it's unlikely they turned them on. I was able to walk up to the machines and look at them first-hand (the representatives nodded their heads and waved). They appear to be very well-made machines and sturdier than my Unisaw and the Sawstop that was at the show. I have seen Grizzly models and they are better made than those as well.
The Hammer will cost the most to operate. Blades are different and a bit more expensive. Right now you can get one at a reduced price through their website. I did hear him tell the one tire kicker that the shipping was $100 less through the show, BUT all the vendors there were charging sales tax (perhaps that was only for items purchased there). The prices listed on the N4400 bandsaw is the same price listed under the website promotion price. If sales tax had to be paid at the show, it would actually cost less to order via the Internet. If not, it would be $100 less through the show. This saw is produced in Austria.
The Grizzly will be the least expensive to operate. Members who own Grizzly tools say the customer service is superb. Their table saws are made in China. This will be your least expensive model at about 50% the price of the others. As a side note, Roland Johnson told me at the Kansas City show that if someone had to give him one 16" to 20" band saw, it would be difficult for him not to pick the Grizzly saw he reviewed for Fine Woodworking. Apparently, the editor of the magazine has that as his band saw.
I have used a Saw Stop at the woodworking shop on a military base (special services). At that time, the shop had two or three of them and two or three Unisaws. The Unisaw models were always occupied when the shop was busy. There was no scientific pole to figure out why. The Saw Stop is a set price no matter where you buy it. You can sign up for a drawing to win one at the woodworking show; if you do the sales department has all your contact information and permission to contact you. The Saw Stop price hovers near the price of the Hammer. This saw is made in Taiwan.
I choose to use the Gripper TM 200 when performing delicate rip cuts on the table saw; those will be a show special at the woodworking show if you are attending.
After seeing at least all three saws, I believe the Hammer looks the highest quality. There's not much difference in quality between Saw Stop and Grizzly, but the Saw Stop is slightly higher quality. You have to determine if that slightly higher quality and the safety features are worth 100% increase over the Grizzly. The same holds true for the Hammer.