Thank you very much Rusty and Troy for answering my questions. I sincerely appreciate it. It seems Lee is correct in stating that there really isn't a large space savings in S scale when it comes to the curves (if one likes broad curves). Troy mentioned 45-50"R curves and I was going to use 54"R for my 2R O scale layout. Yes I could fit 2-10-2s on the S scale side and not fit them on the O scale side. Yes, it is a lot to think about. Thanks again for your help.
I thought the AM Trainmaster was awesome. Definitely good enough for me. As I said I am no rivet counter. If I go to S scale I hope I can find one.
I've never heard of Tomalco. I will have to check them out. I hope they have a website.
BTW, I was checking the website for AAA Turntables and I found out that they do list a S scale TT. The website shows a price of around $1K which is slightly less than what I paid for my 32" Millhouse River TT. However, I am not sure if other add on items are needed which are not included in that price. Anyway, just wanted to mention that there is at least one TT available for S scale. Thanks again guys. [Just now saw Bradys reply.] Thank you Brady for the link to the TT.