I don't think it's just the boonies that has to worry about surge surpressors and brownouts. I'm in a large surburban area and we get reasonably frequent power fluctuations; especially in the summer. I always understood that quick power drops were just as potentially harmful to electronic equipments and small spikes. (This opinion is based on hearsay and 9 EE credits in 1982 ... so not much.)

So what does the industry say, are power dropouts not a concern?

BTW, I have all my major electronic equipment (computer, receivers, large TVs) on APC UPSs. But I didn't do any research to chose APC.