Are Cogeco's "Wireless Extenders" really worth it? They do charge a service charge (although the CSR was willing to reduce the fee by half) and the monthly fee is $4.95. I had a Service Tech here at the house on other matter and he said he only installed TWO of these and he's been with Cogeco for a long time! His thoughts were they weren't worth it -- even at no charge! Your thoughts, please and thanks!