I am part of the RR Museum of PA's Garden Railroad tour as a part of their Model Railroad Days on Columbus Day weekend. The garden railroad tour is on Sunday from 1-5 PM.
Last year, we had a huge turnout (for me) and it was a really busy day. (RR museum reports 600 tickets sold. I estimated 350) I will have guest engineers operating my railroad, and a separate loop (or possibly two loops) thrown down in the grass for kids to operate. It is too many people for me to operate a train and talk to folks!! After all, Garden Railroading is really a social event.
If you are interested in coming to just my house, send me an email, and I'll get you the details. If you're interested in making a day of it, go buy the RR Museum ticket (it goes to a good cause), and do the big tour. My layout is about half way between the other 7 or 8 open houses. I haven't been to any of the others, but the descriptions I read last year make them sound a lot better than mine!! In addition to all the other things to attract train-folk like us to Strasburg, PA, the museum has smaller scale operating layouts (in addition to their regular Stewart Junction education center layouts).
Like last year, we're always willing to host 'guest power'. I think Jim Miller is planning to bring his 11 car streamliner pulled by E8s and maybe a Mallet to pull some freight. I am reconfiguring the layout yard storage tracks to accomodate the longer trains expected on that day.