First, wheels are much more durable than people think. Unless you are heavy and ride or terrible roads, wheels hold up a long, long time. I weigh 160 and them ride Zipp CF wheels ona daily basis for the past five years. I've never had to touch them once.
Second, Open Pro's are generally good but for some reason, many people experience cracking around the spoke holes. Do a search and you'lll find some complaints.
Third, it's really hard to dent rims. If you hit a pothole, you mist likely will knock the wheel out of true. That's easily fixed with a spoke wrench.
Finally, those Bontranger twin sopke wheels are not good.