vm1 - Thank you for your kind words. We did indeed hope to create speakers to bring musical enjoyment for a long, long time.
Regarding the CS6, there is lots of good information in this thread, some quite recent. In broad terms, Thiel was a cost-plus operation, what you paid reflected what went into the product with old-fashioned (tight) margins. If the CS6 sold for double the CS2.3, it had twice the manufacturing costs (simplified model.) The model includes having twice the budget for amplification to support the larger speakers. And a larger room . . . Supporting a CS6 purchase is much costlier than the 2.3.