The cost os SO CLOSE to Torotise after you add the electrical pieces for frogs and such. The only problem I saw was it is s BIG as a tortoise and could be built from model airplane parts cheaper. If you are multi-level you have another problem with it's depth.
I buy about one of everything to test to see If what I am using is still the most logical.
Just my $.02
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.