Disappointment on the road: how I attempt to avoid it

Here's my response to an invitation from Eric over at TravelBlogs.com to reflect upon disappointment on the road:
"Giza’s pyramids were smaller than I’d imagined and their suburban location a surprise, Paris’ Eiffel Tower was little more than an elegant oversized transmission tower, Victoria’s Twelve Apostles tinier than I remembered, and, there weren’t even twelve anymore, and that hot air balloon ride was noisy, cramped, chaotic, and uncomfortably hot. As a travel writer, avoiding disappointment is a constant challenge. Because I know disappointment occurs when expectations are too high. Lower expectations and the chances of disappointment are lower. Raise them and we increase the risk of having a bad time. The irony is the very things we find inspiring – the stirring images we enjoy gazing at, the evocative stories we like reading – are the things responsible for our disappointment if our experiences don’t measure up. To have no expectations, we must read nothing, look at nothing, and listen to no travel tales – impossible for a writer. So the way I counteract disappointment is to seek out different ways of experiencing ‘familiar’ places – to look beyond the main attraction to the overlooked and under-written about (often beneath our very noses or right around the corner), to discover and communicate the wonder of everyday things and people, to write honestly about places, and to encourage others to seek out and appreciate the beauty of the authentic and everyday."

Drop over to Eric's site to see what other travel bloggers have to say, but I'd love to hear from you and find out how you overcome disappointment on the road, or whether you have any tips for avoiding it? Is this even something you think about and are conscious of? Or do you just deal with it when it happens. And if so, how?