I can do tons of songs completely from memory, but I also have another few hundred lyric/chord files on hand for requests, or songs I seldom do.
Since I play in the same place 3-4 nights a week, I simply can't do the same 30 songs every night. Also a big part of my job is doing requests. With the lyrics/chord charts patiently waiting in my Midjay I can do a LOT of them. Most of them. Almost all of them. Some better than others. Not all country either.
DonM