I got this from googling, rather than an obvious spot at their website. Please correct me if this info is wrong.

DEMO DAYS
Ski Chalet's Customer Appreciation DEMO DAYS are the easy way to try our all the new ski and snowboard equipment. Vouchers are available for sale only at Ski Chalet starting November 1st.

January 11 ($10.00)
at Wisp in Maryland

January 18th ($2.00)
at Timberline Resort in WV

Update, please disregard previous post. Pretty sure above dates are incorrect. Got them from this old, out of date web page:
http://www.skichalet.com/Articles.asp?ID=134

If I hear something new and accurate I'll post again.

Just saw this on the *Ski Center* (Ski Center of DC, not Ski Chalet) website:
Demo Day
January 6, 2010(Wednesday), 9:30am to 3:30pm at Whitetail Mountain Resort

Come ski with us at Whitetail Mountain Resort in Pennsylvania and try the latest skis and snowboards! Be sure to pick up a coupon in our store for a $15 lift ticket (available December 1). Use of demo equipment is free.

link: http://www.skicenter.com/web/dept.asp?s_id=0&dept_name=Demo+Day&dept_id=4013&WT.svl=deptnav1