Honestly I do not find it odd at all. A little research might keep one from “buyers remorse”. While I can’t speak for others, I can attest to the fact that my wife and I have both made investments into hobby (jewelry making, scrap booking, woodworking) supplies that are quite literally collecting dust…
Cheap or expensive matters not, if one does not feel as though they have gotten something out of the investment, than one will not feel that investment was wise.
As for advice, I agree that asking those who have a passion for the hobby in question may result in a rather biased response, but I would say the responses so far have been rather good. I too would advise the following:
Find a train show - this gives you the oppurtunity to see both cost and quality, and may help solidify your intrest in things like scale or prototype.
Purchase the following; x-acto knife, styrene cement, tweezers, nail files (the double sided foam backed kind), small screwdriver set, one basic freight car kit (for instance in HO Accurail, Bowser, and Atlas Trainman have basic kits), and one basic building kit (in HO the Atlas signal tower is what I usually recommend)
Purchasing a beginer’s book tailored to your chosen scale is a good investment, but you can also check online for how-to videos, some of which are very well done.
Now give it a try! Even if your intention ends up being the use of all “ready to run”, you will still need the basic skills that building a couple of basic kits can give you. If the model railroad bug bites, that’s great! You can look into purchasing a train set, or putting together a set yourself. But if you find this hobby’s not for you, no harm no foul. You are only out the co