I'm trying to find a good 1U rack firewall at a reasonable price. Most pricing is completely out of space (thousands of dollars? Why?). I don't want to list all features I need/want (there are too many variations but I don't care about most of them) - I'm just looking for something simple and not overly expensive.
I've looked at the WatchGuard XTM 505 which is more reasonably priced -- are there any other firewalls in that range or even less expensive that are good for a small company?