I have an LCD at work & its much preferable to CRT.
Most importantly LCDs don't flicker & the edges between black & white are cleaner than CRT.

Generally LCDs get blurry at other than native res.

But you can actually use the Advanced button on the Appearance tab of Display Properties to increase the size of the display text (& other display elements) to a comfortable size.
I've been doing this for years to make the text properly viewable on CRTs.

Main problem comes with movement eg when scrolling text where an LCD can look icky (same with games) due to slow response time, though its getting better.

Smaller size monitors are down to 2ms response now & I'm currently seriously considering a 24" 6ms screen to replace my 19".