Here are some trends: Total acoustic pianos sold in the USA 2005 = 95,518
Total acoustic pianos sold in the USA 2009 = 33,060 a decrease of 65% in five years.
Source, this month's The Music Trades Magazine.
Meanwhile in 2009, 102,000 digital pianos were sold in the USA (source, Music Trades)
In the years from 1967 to 1983, annual USA piano production was around 200,000 units give or take, and a couple of years closed in on 300,000 units per year. http://www.cantos.org/Piano/History/marketing.html
2009 numbers represent an 83% decrease from the annual production 1967 - 1983.
We are in a declining industry (in the USA). All of us have to figure out how to compete better against digitals. It's our own survival at stake. When the economy recovers, acoustic piano sales will recover to some extent, but like a declining stock, we are in a trend of lower lows, and lower highs. We need to reverse that.