So imagine my surprise when I discovered a router that appears to do everything that the Linksys does, but for less than £9. It's a Dabs Best Value model, and costs £8.81 plus delivery. Absolutely bonkers - worth buying just for an emergency standby if nothing else. There's even an ADSL version for just £10.99 from Play.com.
And if four ports isn't enough, on my bargain-hunting travels I also discovered this GetNet 5-port switch for just £5.99 with free delivery from Play.com.
Tenda W311U for just £8.49 plus shipping from Ebuyer. I actually bought one as I needed a Windows 7 model to use with Connectify as part of a feature I was writing. It works perfectly with no drivers needed for Windows 7 and has the bonus of being absolutely tiny. It is only 'basic' 11n, which means it doesn't use 40MHz channels and hence has a link speed of 150Mbps rather than 300Mbps, but it's still faster than 802.11g.
Now on a roll, I thought I'd look for the cheapest Wifi router I could find, and Google Shopping came up with the TP-Link WR340G (pictured) for just £14.45 from SVP. It's an 802.11g 5-port model, but if you fancy 150Mbps 802.11n, for just £18.99 Amazon has a GetNet model.
So for under £20, you can get pretty well everything you need to run a small home wireless network. Remarkable. Of course, how reliable all these pocket-money packet-shifters are is a topic for another day.