Haven't used the 4033, but I think I remember an AT rep telling me that in cardioid (on the 4050) they're very similar. I use 2 4050's for M/S stereo room mics and use the omni for acoustic guitars and percussion sometimes. For my use, having the different polar patterns is a must for a large diaphragm condenser. For some singers the 4050 has beaten out a 47, 414, c12VR
and 87. Price isn't always the determining factor for how good something is. By the way, Audio Technica probably has some of the best bang for the buck mics on the market. AT sent me a bunch of stuff a few years ago and I've been using a lot of it ever since, even with the vintage standards available.