As of the present time, playing at church is also my only gig where I use my SR505. I love it, it works great and the sound man loves it as well! That low B comes in very handy, especially if we end up playing songs in a key that's different from the original. (That happens a lot.) I make a point of not over using the low B and try to treat it as if it was an effect. If it's used at the right times it can add so much to the moment.
But for my own practicing at home it's pretty much on my 4 strings. I can't get enough of my 2009 AM STD Jazz bass. Also have an MIJ Classic 70's P bass as well.
That's why I keep the 5 (we change keys a lot at church as well) even though I think I want to try and simplify/retool with a passive four. If I could sell, it would take care of some debt, and I could still afford a "decent" passive 4 string. I am spoiled by the great Roscoe B string. If I'm not playing a Roscoe, I won't be playing a 5 string.