If you're reading this review you're probably here out of a fascination with LEGO yourself or you have children that you're shopping for. To get the obvious stuff out of the way, yes, these LEGO baseplates are expensive and yes, these baseplates are compatible with most LEGO sets outside of the kiddo oriented Duplo collection.My two boys are huge LEGO City fans and we're slowly building out our LEGO village which now includes several trains, buildings, and a ton of vehicles. These baseplates are, in my opinion, an absolute must if you're planning on having more than just a smattering of different LEGO stuff. These road oriented baseplates really tie the whole City collection together allowing you to create a true City environment. Each plate features the standard pegs that can be used to anchor buildings, track, and other features together building a seamless City experience. I'll also mention that if you collect LEGO aircraft these plates would also pull double duty as airport runway!So, why are essentially two large pieces of plastic so expensive? I really can't say other than the fact that almost all LEGO stuff is expensive. I will, however, say that every building toy and set we've purchased from LEGO is absolute top-quality. These baseplates are no exception and everything from our