With prices right in the basement for Pentax 35mm cameras, I'd definitely reiterate the sentiment of having 2 bodies. What I would usually do for weddings back in the day is take my K1000, load it with B&W and my Program + (one model down from the Super Program) for most other shots, doing auto, and then using exposure compensation.
I bought a P3n (P30) just for the lens that came with it, but I agree, it's a rugged, nice camera and I've grown to like it, and like the outer coating that looks like new still.
I inherited a Super Program and like the TTL flash functionality it adds over my previous cameras and wish I'd had that way back then when I was a semi-pro. The gentleman I inherited it from used it constantly until his demise 2 years ago and travelled the world with it. He'd go to places where many would fear to tread, so it's a prized possesion. It comes with me as my 2nd body to my K30 as a good luck charm, if nothing else!