Investing heavily in a two channel system is a waste when compared to investing in a high end home theater ...
If you’re going to evaluate those two options as investments, then they are both poor choices because you’re typically buying depreciating assets. From a depreciation standpoint, you might actually fare better with two-channel gear, because some of it does retain its value. In comparison, consumer home theater gear is often rather disposable.
Either way, your claim assumes a preference for home theater, and that’s quite an assumption. Some of us really don’t care much about movies. We’re music people.
... the sales data I posted ... shows this is the direction that both the consumers and the producers of todays media content are going.
They are also going to McDonald's. Who cares?