Condos may, and quite often do, have enormously expensive maintenance issues that the condo owners are quite unaware of until the last moment and will have to shell out for via special assessment from the condo association. Example from personal experience: very soon after moving into my condo, cracks were discovered on the other side of the building. They were investigated and it turned out that the building was made from substandard concrete. All exterior facing concrete needed to be replaced or the building would fall down. To pay for the fix, there was a special assessment that I needed to pay into, and to add insult to injury, for 2 years I could not use my theoretically beautiful view from the balcony and windows - it was all jackhammering and concrete dust.