I rather pay an extra amount to ensure I get the best wifi.
Paying more money for a router does not always mean you get the best wifi. Sometimes slightly cheaper routers outperform more expensive routers, and come with better software/firmware. Some routers also allow you to load DD-WRT custom firmware which is one of the best custom firmware for routers.
With the slower average internet speeds in Canada, and some parts of the US without Google Fiber, Comcast 1Gbps Cable internet, etc, users would not see much or any speed increase by upgrading to a faster wireless router with a maximum speed of 1300Mbps or faster speeds. If you live in a small house or apartment, the long wifi range is not useful because you would never use your Wi-Fi signal very far away from your router.
A lot of people on slower internet service like 10 mbps, and live in an average size home would be fine with the $20
TP-LINK TL-WR841N Wireless N300 Home Router which has pretty good reviews.
TP-Link also makes a $90
Archer C7 802.11AC router which is the best wireless router for most people according to
http://thewirecutter.com/reviews/best-wi-fi-router/ , and it has a lot of good reviews on Amazon, and is Amazon's best selling router. It would be good for people who have faster internet service, and live in bigger homes.
You've never heard of TP-Link? Wow! It's probably the most popular brand of routers in Eastern-Europe. Basically, most ISPs here offer their clients free TP-Link routers.
I think TP-Link is the most popular alternative router brand in North America for buyers who don't want a D-Link, Netgear, Belkin, Linksys, and ASUS router. TP-Links prices are also very competitive with other router brands, and cost about the same, or slightly less.