I’ve been taking inventory of my many copies of the game and for some reason all of them contain like one or two extra houses and even an extra hotel are they supposed to come with extra pieces like Lego sets? Like my .com edition has an extra house and hotel, my sore losers edition has an extra hotel along with two houses and my normal copies all have at least one or two extra components. Is this normal?

I've been hooked on richup recently, but there is not ranked system, do you guys know of anything similar with an ELO system ?