> little control over costs (HOA, special assessments)
> more influenced by distress sales (for example, in an SFR you can argue that you have a better lot, better sunlight, etc than the distressed property across the street that just closed escrow for $50K less than your asking price – when the condo three doors down from you with the exact same floorplan sells for $50K less than yours, try telling a buyer how your condo is so much better than the distressed one and how that low-ball comp should not be considered)
> HOA tells you how to live (no junk on the balcony or patio, landscaping must be approved, no parking in the driveway, etc)
> common walls – I love hearing my neighbors {fill in the blank}
> poor construction – condos are the main reason destruction defect litigation exists
> lifestyle – looks and feels like an apartment complex