We are all so dependent on routers now in order to gain access to our digital music, so when your router goes down the music stops!! They are of course as a general rule very reliable.
Last night, at closing time, a client of ours was in a panic as she could not play her music stored on her NAS and she had a party starting at 8pm. We closed the store at 5.30 and paid her a visit to find out the router had packed in.
We returned to the store and took back the showroom router and got all the music and internet up and running by 7pm. Had to stay for a bit of the party!
Moral of the story;
Consider buying 2 routers with both of them pre configured and keep one as a spare. Then if one breaks you have a spare and can be up and running within minutes.
Why have your £5000 or more system stop working, when for the price of a spare router (£50-£150) you will have more reliability and piece of mind? Also all your computers will continue to function!