I have had times where as many as ten players have asked for resurrections within a matter of minutes. That is -without- counting the continuous requests for gates, enchantments and general aid.
This "heaven forbid you can just have spirit sight up at all times" is bordering on offensive. Not all races have concentration capacity in abundance. With two sanctuaries held, I could only cast heal if I let go of all light-concentration spells, including spirit sight.
Heaven forbid I prioritized the life of those in my group 
.
Priests are a source of never-ending encounters with other characters, yes. They are also the source of massive headaches, and unless you play a factioned priest, which will decrease the requests you get significantly (ie. only giving life to one side in a conflict), you risk ending up feeling it more like a job than enjoyment.
That said, some churches are worth it. I personally
much prefer religious roleplay/groups to cabals.
To newbies: Giving your name prevents your tell from disappearing in the noise of other people requesting this or that. If you get no reply within a few minutes, ask again - it may have disappeared in fighting spam. Roleplay the interaction well and you will own the hearts of at least some priests - and likely have an easier time getting a rez next time you need one.