This looks like you just kept buying monitors without ever giving one away.

Although they all look like 24". I would have expected you to gradually buy better models

You're almost correct! The center monitors are 23" and the side monitors are actually 1440x900 in portrait mode. The middle 23's are yard sale monitors, the "wing" monitors were from a friend whose employer was disposing of them. My biggest expense was a second video card, since they are DVI/VGA, and that was only $50. Other than that, the monitor stand was about $40.

You definitely are!!