Macs Very Infrequently, but Never a PC
My Mac purchasing history fits on one hand:
1991 - Mac LC
1995 - Quadra 475
1999 - iMac (400MHz GL SC, I think; the graphite iMac)
2003 - 1GHz TiBook
2010 - 27" i7 iMac (July 2010 edition).
Why so infrequently?...because they suite my needs over a long period of time, and are supported for many years.
FWIW, I have never purchased a PC, and never will.
Jerry