I lost 2 of mine after the hurricane (Irene). I usually go through many of them due to trying new ones, flashing with various firmware ever since DD-WRT, Hyper-WRT, Tomato first came out.
I've had 2 or 3 of them brick up while fiddling with firmware....I've been lucky enough to get all of them back to life by ripping the cover off, and doing that power cycle sequence while holding a metal tip to the short pins on one of the chips...and timing the launch of tftp firmware flasher.
I'm a firm believe that home grade routers are a bit sensitive, especially the power supplies...and I always try to have them on battery backup units. I follow this practice for clients of mine also...all network equipment for that matter. I don't have the failure rates I see others tend to have.
But back to losing my 2 after the hurricane....and I knew it was a bad idea, but wife and I needed internet. I had my network equipment running off of an APC Smart Ups 700 for a long time. The AT&T U-Verse gateway, my 1U SuperMicro Atom D510 linux firewall (currently running PFSense), wrt150N for access point, RV082 with IP ending in .2, no DHCP, being used as a switch to gain me ports..and can quickly be put into place when the linux firewall is offline. The APC 700 gave up the ghost about 2 months ago...just old age. So I had my units plugged into a regular APC surge protector plugged into the wall.
Came Hurricane Irene...power out for almost a week. Couple of days into it, borrowed a 5k generator from a friend. Fired up fridge, kitchen light, living light, my AT&T U-Verse box and other network equipment. I had reservations about running my sensitive network equip off of a generator...through just a surge strip. Yeah surge strips protect (can) from big spikes...but no protection from sloppy dirty fluctuating power, little dips (brown outs), tiny spikes, stuff that makes capacitors struggle. Sure enough...2 days into it, she got wonky. Break out my old backup...a wrv200...power was restored 6 days into it...but not long after...she went tango uniform too.
We also had many many customers that oddly enough, also had lots of IT related equipment flip out after the hurricane. From hard drives, to servers with missing HIVE errors, to switches, access points, routers, heck even optical mice. I have to take a wild guess that power, when restored after a big outage, comes back "dirty" for a while. Especially widespread outages such as what Hurricane Irene did to New England. As those linemen are bringing sections of the grid back online...things must be fluctuating wildly.