You are entitled to your opinion however I would respectfully disagree. When you go to hear an orchestra, are the musicians sitting behind you? I thought not. Ah, you say that 5 speakers recreate the ambience of the hall! Ok, my 2 channel system will do the same, however I suspect it's at a much greater level than yours.
As to HT, I enjoy immensely the effect of 5.1 surround, movies that make proper use of the technology are wonderful.
My HT system uses Infinity RS1's as mains, biamped with stout Levinson amps, and does well at two-channel as well.
However it does not have the same palpability and "you are there" sound of the dedicated two channel system I have using tube cd and preamp, into solid state 33H reference monos.