Buying Model Trains Online
It can be of course difficult to see what you need without being able to physically pick it up and look at it. It can be hard to judge scale as well. This is probably the biggest downfall of the Internet purchase. While it might make things quicker you have more of a chance getting it wrong as well.
Here are the simple rules when it comes to buying a model train or parts for a model train online. Of course, make sure you purchase from a reputable dealer. This goes without saying, especially on places like Ebay. If you can, know exactly what brand or brands you are looking for. Stick with what you already know if possible.
Get to know this stores return policy like the back of your hand. What needs to be done to get a refund, do they even offer refunds or just more store credit. This is a biggie right here. The safest form of payment is still credit card. It offers you the best protection you can get. Paypal is good, but no where near as safe as a credit card.
If in doubt ask in discussion groups and forums where they buy their model train supplies from. The majority is a good place to start. Don't just buy because its the lowest cost. This is a disaster waiting to happen. Talk to the staff via email, see how fast they respond and how friendly they are.
You will want to start forming long term buying habits from these people so ask a lot of questions. Thats the nature of the hobby train game, you will always need something else for your train set.