This was in a big thread awhile ago, but I'm too lazy to find it and link it. If you're doing straight up HT or always listening to music using the crossover, then it really doesn't make sense to get a full range tower. However, if you like to listen to pure 2-channel music and use the mode on your receiver/processor like Yamaha's Pure Direct (which cuts out all non-essential processing and routing), then you would want full range speakers. This is often why people opt for full-range mains on their HTs. This allows them to do double duty. Of course, if you have the money and room, I would say go for two separate systems. Make a killer HT system with subs and satellites, and then a killer 2-channel system with a pair of full-range speakers.