It has Steam heat and I paid to replace the boiler initially, however, over the past few years all the cast iron pipes are riddled with leak and rust.

I sometimes get to specific as I was inquiring about a specific neighborhood San Souci, not Greenville (though they are practically one in the same) But you are right on the money I should have cast a larger net.

Older than this, but <~80 years and you are most likely to encounter cast iron sewer lines.

I listened to the recent pod cast about being frugal to save money. 

When Shirley arrived and kicked all of us out of the room while they "set-up", which included just putting tables out so they could register, instead of allowing the new and not yet members into the room first, they had what felt like to me a caste-like system for allowing people to enter and sign in.While I was there, engaging with the speaker and being involved in the conversation, because the speaker was AWESOME, people wanted to come up to me afterwards and talk. 

Plumber says he thinks it is a problem where the sewer line is out in the yard from a collapsed cast iron pipe.

You will find resources here from blogs to pod casts and forums.

I haven't taken a bath since 2004 (although I shower almost daily) and I just don't know if it is worth keeping the old, cast iron tubs and having them reglazed or removing them and replacing them with a walk in shower for about the same price.

The bathroom consisted of the hot water heater, sink, old cast iron bathtub (like 400lbs worth), and toilet all of which needed to be replaced.

@Ashley Cast, I'm just over the Hill in Rancho Cucamonga.