I was considering just letting them "age" in the background. Guess it depends how out of date they are. No chance of just sprucing them up?

I think Judebanks have abetter option.

Thanks for the comments, I'm going to just trash many of the posts that are old, they may get a trickle of traffic but I'm not concerned about that, I'll also deal with WMT errors as they come in.

I did consider updating some of the posts, but it's likely better to just create new posts from scratch.

something for me to consider further down the road

That depends on the stats. Are those posts still getting hits? If not, just delete them and move on. If so you may want to set up redirects. It's entirely up to you and your judgement. It won't harm things either way.

I trash them, then go back and delete trash

Not sure how outdated they are but couldnt you just write a brand new updated post and simply link the old one to the new updated one. I don't really see a reason in deleting the post completely and I personally would rather see that you take the time to update information instead of me simply not being able to find the page but thats just me.

I have not reached that stage of old post. I have only two pages of post. Now my niche have other pages with other themes. But I'm not sure disposed of, unless if I'll have an archive for this purpose. Always serve as references. That's my personal opinion, when it comes to me your situation, we talk. But if I would like to read the experts from the community, it does not hurt.

Not sure but would like to hear the answer,
Brenda