I was looking at some rentals for a trail day @ Whistler and saw that I can demo a Spartan. Great! A bike I'm familiar with and can set up myself. The issue is the price. I can "rent" bikes similar to the Spartan for $70 a day. But to "demo" a bike, it's $150 (or close). What's the difference? Both are day-long rentals. Also, anyone ever ride Pemberton or Squamish? Which is better? Trail recommendations?