I can dig it.
I just did a quick lookup of the dimensions on a 29" CRT vs a 40" LCD and it looks like they’re close in actual viewable height (roughly 19.5" for a 40" LCD vs ~20.5" for a 29" CRT), but there are other factors (like brightness) that can come into play to make the LCD more or less comfortable to play on.
The 29" monitors were much less common outside of Japan, as well, it seems. I have a 25" in my woodie and it’s about as big as I like to play that closely. A friend of mine has a bunch of 29" candies and they can be a bit overwhelming.