Welcome bazzer to this unique hobby! I hope you do decide to become a crazed slotter like the rest of us, its a fun hobby! Beware though, you may easily become obsessed with it and spend large amounts of time and money before you know what hit you. Like a lot of hobbies (and addictions) I suppose. And like most hobbies, do it for yourself first, then find some like-minded enthusiasts. There are plenty here! Asking questions before taking the plunge is a great way to get your feet wet first, and get the most out of this experience too, in the long run. Anyway, to answer some of your questions:
Don't choose to go routed because you think it will save money, it probably won't. There is still lots to buy, including tools, mdf, copper and braid and don't forget your time investment, it's a lot higher. Mistakes here will cost you some too. Instead, choose routed because you like the idea of a complex, original layout, and a smoother ride. 16X4 is a great size for a track.
I hope your family gets involved, that would be cool. Your son and his mates likely won't get too serious about it until age 7 or so, then up until they leave the nest (if they enjoy it), so you have at least 7 years to build, ha Good luck and have fun!
Don't choose to go routed because you think it will save money, it probably won't. There is still lots to buy, including tools, mdf, copper and braid and don't forget your time investment, it's a lot higher. Mistakes here will cost you some too. Instead, choose routed because you like the idea of a complex, original layout, and a smoother ride. 16X4 is a great size for a track.
I hope your family gets involved, that would be cool. Your son and his mates likely won't get too serious about it until age 7 or so, then up until they leave the nest (if they enjoy it), so you have at least 7 years to build, ha Good luck and have fun!