You'll never realize just how crappy your knives are until you get a high-end, quality set. My girlfriend bought me an entire set of Calphalon Katana knives for Christmas and with the block and cutting board, it's around a $1,000 set (retail). She gets a discount through her workplace so obviously, she didn't spend that much on them.
They're so nice that I was paranoid about even using them for a while. But now that I do, I'm amazed at how great they are compared to the set I had previously been using. The 7" Santoku will cut paper thin slices of London Broil like cutting through butter...amazes me every time.
But be sure to properly care for your knives. Good knives should always be sharpened correctly, never put in a dishwasher and hand dried before storing.