So many frequencies, so little time......
I can only echo what others have said about digital being the way to go if you are even half-way serious about monitoring. I got a digital trunking scanner (PRO-98) in 2006, after MSP in my area switched over to the MPSCS. Wow. There is so much more on the MPSCS than some people realize. There is a National Guard facility, a federal building, a large ambulance service, not to mention local law enforcement...I guess it has become one of those things, like a cell phone, that after you have had it a while, you don't know how you got by without it. I only wish that my scanner also picked up military air band. I have hung on to my old RS PRO-2004 only for that reason. (Someday the budget may allow for an upgrade.) Since emergency/disaster response has long been an interest of mine, I have all the EVENT TG's, Dept of Public Health, MEDCOM, & a lot of other "stuff" that is normally silent, however when the ca-ca hits the fan, has the potential to become quite active. I also never travel without my scanner & my ham radio, so I have my most frequent destinations all programmed as well.
As a side note, I can date myself & say that I can remember when a 4-channel crystal scanner was plenty!