Results so far, just of people I actually know

[ewx]

sfere$ wc -l cheap overpriced
     16 cheap
     10 overpriced

(Though actually including the tickybox people doesn't skew it much.)

Comments

[gerald_duck]

It might be worth pointing out that, IMHO, "cheap" and "overpriced" aren't antonyms. Cheap means "low in price in absolute or offordability terms", and "overpriced" means "high in price compared with what is reasonable". "Cheap" opposes "expensive", and "underpriced" opposes "overpriced".

[bopeepsheep.livejournal.com]

'Cheap' also has non-financial connotations that 'overpriced' does not.