I don't see any links or pictures of pressure washers?
Which one are you referring to?
A couple of quick recommendations. Always horizontal pump. Never vertical. Always Honda or Honda clone engine. Chinese horizontal pumps have been pretty good lately, especially for the price. Pumps are easy to change out (4 bolts) and not that expensive for a very good one ($200-$300), so if the Chinese pump dies, just replace it with a better unit in a couple of years.
Honestly, its hard to go wrong with the Harbor Freight unit. After coupon its only like $230. Chinese clone of a Honda GX200 engine, Chinese pump. About all your average home owner will ever need, plus its much better than some of the big box store washers at about half the price.