I was not precise enough... End-game I mean... I have a lot of SOKs, Bazaars and Football pitches with all the important GBs... I barely have anything else in my town. So I am not really willing to remove all the premium stuff, just to fulfill the achievements...
(Even... I had problems to do the build X number of houses in the current event.)
I really don't have anything which can be removed.
Long live the Store Building kits.
I know this problem, I'm also on a point where I doesn't need much news. Well, maybe just
a new kind of multi production building or a intressting event building (happens sometimes,
like event buildings with more attack power and stuff).
I was aware of this problem, so I keep holding some space for normal buildings, that I can
replace. Back to your question, maybe some kind of end game players how does have
a expansion and spend some time with building and selling houses, ways and another
buildings, a kind of player that realy want to got the archivement.
I think if there was some kind of reward, if you got a archivement, more players would
be doing it. If the reward is it worth.