I am in the process of putting a 5" gauge line in the garden. Motive power is currently two battery electrics and a steamer. Now that I have given up on Trainz I have more time and money to pursue this. All the activity is reported on my website:
http://bellariaalpinenorthern.org
I wouldn't say it's a cheap hobby, but I wouldn't rate it any more expensive than golf and probably quite a bit cheaper than live steam in gauge 1. I bought my steam loco secondhand for about the cost of a really cutting edge gaming PC. To build each wagon costs me about the same as a newly released game, and the track costs about the same per meter as a payware loco. What I really like about it is that my garden never gets corrupted causing me to lose the railway, I never have to edit any config files to get my locomotives to work properly and the physics is guaranteed 100% realistic.
Stuart
http://bellariaalpinenorthern.org
I wouldn't say it's a cheap hobby, but I wouldn't rate it any more expensive than golf and probably quite a bit cheaper than live steam in gauge 1. I bought my steam loco secondhand for about the cost of a really cutting edge gaming PC. To build each wagon costs me about the same as a newly released game, and the track costs about the same per meter as a payware loco. What I really like about it is that my garden never gets corrupted causing me to lose the railway, I never have to edit any config files to get my locomotives to work properly and the physics is guaranteed 100% realistic.

Stuart