Yep, the distinction between crappy knives and good knives is generally more about how long they hold an edge for rather than how sharp that edge is.

Victorinox make knives that are good and cheap though. They're the only brand I know of at that price point that I really wouldn't mind using instead of something quite a bit more expensive like Global.

Assuming a certain baseline quality of steel, the most important thing in a knife is how comfortable the handle is and whether the balance/weight is right for your particular taste and grip.