Well, kinda the same price, they sometimes up it to account for inflation. I do see the DLC difference (this could be said to be an equivalent of for example Minecraft Dungeons with the amount of content, but I see how it is kinda “more of the same”). Anyway, the 2.0 update does bring a lot to the base game for free.
What overlay? That looks like Windows 7 with the Aero theme disabled to me.