250 Donuts, what to buy?

I'm all about getting good value when buying premium items, so I'd skip Sherri and Terri - 150 donuts for a character only and they don't have separate tasks. Arnie is one I'll personally never buy because I think the helicopter is distracting. The Observatory is an awesome buy, as it looks good and opens up premium tasks for multiple characters. Disco Stu is pricy but it is a building/character combo and I love his two outdoor tasks. I don't own Manjula so can't comment on her, but the price is pretty reasonable for a building/character combo. Enjoy!