What is the purpose of a weekend church service?

There were several good and unique responses to the last post re: the “would you give up your seat in an easter service so someone else could have it” hypothetical scenario.  It’s actually a less hypothetical scenario than you might think.  I ran across a good friend of mine who was considering exactly that, and I was a little taken aback just because I had never really thought about it that way.

I thought about simply adding my comments to the last post, but decided to post what I think is an underlying and perhaps more important question.  I believe how you answer this question drives your response to the last question, so I’d like to pose it explicitly:

What, exactly, is the purpose of a weekend church service?

Note that the question is not, “what is the purpose of the local church”…I’m focusing in specifically on weekend services.  Why do we invest in them?  Why do we attend them?  What value do they bring?  What is the benefit?

What do you think?