I've belonged to many choirs. I think they are a hotbed for this sort of issue. The last choir I belonged to I quit. People can become quite egotistical about their voices and I was shocked that some choir members were offended I sang a solo and had only been in the choir for 1 1/2 yrs. Sigh I found it more inspiring to sing within the folds of the congregation. I've since joined a new church and had someone come up to me and say I should sing in the choir because I have such a nice voice. I'll have to think about that first before I step into that role again. It removes the whole meaning of "singing once is like praising God twice".