My wife and I lived in Seneca (actually in a lake community north of Seneca) from 2003 thru 2006. I remember that 2004 storm! I worked in Anderson at the time - was released from my position early that morning (mod snow in Anderson); but, after driving home to Seneca, snow rates significantly subsided - I think we rec'd about 1/2 inch, at most.
I wanted to stay in Oconee County - amazingly beautiful lakes with easy access to NC mountains (Cashiers, Highlands) - we'd drive up to Highlands at least once a month. However, my wife disliked Seneca/Oconee County (esp after we had our first two children) - then, after a short stay in Chattanooga (and another child!), we moved back to SC, into the city of Greenville - wife is much happier. I have great memories of Lake Keowee and the easy access to mountain activities.
Absolutely correct on all points - now that I live in Greenville, I seem to receive more ice/snow.