The only advantage is the 2-in-1 solution Apple gives, router and HDD in one. In a sense, a space saver. Moreover, no need to fiddle around a USB connection to perorm your back-up.
Can I use the TC with my fios router?
Jay
The other downside of the TC is that it isn't easy (possible?) to upgrade hdd.
Is there an advantage for the Time Capsule over a standard external hard drive for time machine backup? I currently have wifi via Verizon fios.