Apple Online StoreSome people “may favor using a Mac mini as [a] source for digital media on TV, but Apple TV offers the following advantages over a mini,” Don Andrachuk writes over at MacInTouch.

• syncs accurately to your TV on a pure plug-and-play basis
• provides a custom interface dedicated to media selection and display. There is no general purpose computer interface to navigate–just power up the Apple TV and you’re ready to go
• is compact, totally silent, unobtrusive, and self-contained–no fan, no power brick, no keyboard or mouse, and half the size by volume
• provides custom ad-free quick access to podcasts, YouTube, flickr, MobileMe photo galleries
• accepts streaming video from other computers on the local network
• provides an HDMI connection-this allows the simplest possible (i.e. single-cable) connection to your home theater system and at the same time provides the highest possible quality plus compatibility with industry DRM systems, e.g. HDCP for HD sources
• provides automatic sync’ing to a host computer and can therefore…
• act as a convenient media ‘carrier’–once sync’d, it can be easily transported to another site (e.g. a vacation home) and serve as a dedicated high capacity media server with the connection of just two cables: power and HDMI
• supports true, discrete 5.1 digital surround sound
• supports the iPhone/iPod touch as a graphical remote control
• automatic software updating
• and, of course, Apple TV is less than half the cost of a Mac mini

Read more in the MacInTouch thread here.