I've found that those who disrespect a musician for playing covers,usually have a hard time learning covers
No, they just bore me to tears. I've done the cover band thing and I just don't do music for that reason.
I don't disrespect people who do it -- I just wonder how the hell you keep interested. I've seen some really good cover bands. But they have to be super good to keep my interest.
My favorite cover band gig was when one of my bass students had to go to jail for the day and called me in a panic asking me to sub. I got the phone call at noon (this is 1991 or so, no internet, email, text, voicemail, just a casette answering machine). By 3:00 I called him back and said sure, I'll do it. His guitar player turned up at my house at about 6:00 and I went over their 40-song setlist. Most of it was Doors material and I had been on a Doors kick recently so I knew all of it. That movie with Val Kilmer was out. I still don't know why I was drawn to learning tunes from a band with no ****in' bass player, but, whatever. I guess I liked their session players pretty well.
Anyway I went on with the band at 9:00 having had nothing but a 90-minute go-over-it session with the guitar player. They asked me to drop out on a couple of tunes that they hadn't even shown me, but mostly if I didn't know the tune cold I had chords in front of me and I improvised.
I just found the entire thing not very challenging and not very rewarding. The band was called Hyperkarma, and as I recall we played at a bar in Denver called the Wooden Nickel. There was a very weird woman who looked like she'd escaped from the casting for the Doors movie . . . and the bartender was serving some riotously-named drink that was everything left over poured into a shot glass. We played for 3 hours or so and it was fun, but I didn't want to go back and do it again and again and again.
The most recent show I have played (about 2 months ago now) was 90 minutes of my own music, and the crowd was spread across the BBC (Bluegrass Brewing Company) and the hookah place across the square from it, and after EVERY SINGLE SONG we got a hearty roar of approval.
My songs. I was loving it. It is very hard to come down from that and sit there and play a bunch of old classic rock tunes that people politely applaud at.
Once in a great while we'll open with a cover tune but they don't last long in Boojum. I write a new song every couple of weeks. I give it to the guys, they do their thing, and pretty soon we've got a song. Our last cover was Pork and Beans by Weezer. Haven't played it on over a year.