I have a doughnut free town as well, apart from 2 cars i bought after saving the doughnuts i received just from playing and getting SVT in a mystery box. I would love to get some of the premium items but i feel it costs to much for the amount of doughnuts you get.
When i look at my the towns on my friends list, i cant believe the amount of stuff they have... some have multiple of the same items, and i cant help but think either they have dropped some serious cash on this game or hacked it.
I even see towns with every premium item but their town is not cared for, such as one tiny road, everything crammed together with no thought or reason, and no pride behind it. Why spend that amount of IRL money for something you dont take pride in?