As mentioned several posts above, looking for second handed items in eBay or flea market is also not bad.
I am still opening my eyes widely on every flea market for good audio Equipments like amplifiers, speakers, etc.
You will be surprised once in a while of what you found.
Older stuffs like those audio receiver+amplifiers e.g. from Technics are quite dirt cheap and they sound really good.
If you are lucky you can find them with really good conditions.