Computer Hardware is made by Manufacturing Robots from plastic and Silicon Chips. Thus it Cheap.
The Major cost is the Research and Development (R&D). That is why Intel/AMD CPU cost a lot when they released and than drop down).
Network Hardware?s R&D is done by very few OEM developers. As a result the cost spreads between all the Brands that package the OEM Hardware and sell it under their name.
If you open the plastic box you will discover that almost all of the hardware inside the Fancy Plastic s consisting on a PCMCIA Radio with interface circuitry and firmware chips.
As a result the ?Marketing Ploys? is the main factor in the pricing of Entry Level Network Hardware.
While some Access Points can be configured as a Repeater it takes some effort to understand the Repeater aspect and configure it (You have first to put it on a computer to access the system and change from default Gateway AP). Many people do not know or do not want to know these aspects, so the Marketer finds a chance to catch them in the Wallet. The so called Expanders (Extender by D-Link) are hard set as Repeaters.
BTW. I do not think that the specific Linksys that you mentioned works as a Repeater.
What is a Repeater?
Wireless Network - Configuration Modes.
Bridging Wireless in general:
Wirelessly Bridging Home / SOHO Network.
:sun: