Though the Sub $200 are called Routers there is big differences between them and Active Industrial Routers that are also used as Security Appliances.
Entry Level Router main security is The NAT (aka NAT Firewall) and in this they are basically the same..
The differences in security between the Entry Level Routers are the Users rather than the Technology.
Most user do not bother to understand how their "Gizmo" works and end up exposing themselves to Internet/Network hazards No matter which Brand/Model they buy.
When you get a Router.
First I make sure that there is No "Feature that allow the Router manufacturer to connect at will to my Router through the Interent even when it is masqueraded under Auto Firmware refresh. If you find such feature disable it.
Never Use WPS, for Wireless security Disable and configure manual WPA2/AES.
Disable uPnP.
Go thought every entry of the configuration Menus and make sure that you know what it does and what its safe configuration.
To make live easy I tend to Buy DD-WRT compatible Routers and Flash. By doing so I do not have to learn new Menu structure too often.
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As for Inexpensive Routers.
There is always reasons why they are inexpensive, and it Not because the vendor is a Nice and want to save you money.
In many cases the Cheapos are simply Not reliable hardware wise. I.e., low level vendors buy chipset and other components that did not pass rigorous QA control, assemble them with renamed OEM firmware and sell them for fraction of the cost of reliable Brand names.
Then it become a matter of percentage. Some of these units can work well while most of them fail after a while or under perform. The fact that hear from some members of Internet Forums that they bought these units and they work well not mean that they lie. It just means that they are part of the 10% that lucked out with of the Good units.
