A few thoughts from someone who has had 'S' and "0" for awhile. And really, not a technical or artistic person. Keep in mind I love both scales. I have about 400 S rolling stock and probably 800 in O3, O2 and some on30. Unfortunately, S has not had the availability that O experiences today. I am not sure S is really cheaper if that is important. Just this week I ordered 8 RC O 3 rail switches, 18 pcs of gargraves track, a few insulators, and track nails and a case of cork roadbed, and 1 bb structure to approximately replace some O 2 rail track. Cost:approx.$600. A lot of money for a retiree., And as long as us old geezers stick around there will be enuff manufacturers around. Gargraves makes really nice track and is working on their switches. S Helper Service, now MTH is beautiful. You will not find the vast selection of structures in S that you do in O right now. That can all change. You might want to visit one of the local S meets to see and talk to others. I personally haven't been to one in about 10 years, but I really enjoyed them and learned from them. As you can see from your other writers these S guys are really dedicated, knowledgeable, and passionate about S. Lay your hands on back issues of S gaugian magazine. Also, you might want to hold onto your O stuff while exploring S. I have regretted selling stuff in the past. It appears Lionel and MTH are ready to go to war for the High end prototypical S market. There are only so many train guys to go around, but maybe they see a lot of HO guys moving up to a larger scale. Time will tell. Have fun exploring S and absolutely the best of luck in your modelrailroading, whatever that may be.