The Dogs Trust in Bridgend says over 600 dogs arrived at the centre last year - a record high.
Staff believe the struggling economy has played a part, but added many people simply don't realise the time and money needed to care properly for a pet.
They have urged would-be owners to think long and hard before committing to a dog.
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Figures show Wales has the lowest percentage homes estimated to be worth at least £1 million - in the whole of the UK.
All very autumnal today with a mixture of sunshine, showers and fresher feeling temperatures!
Wales Manager Chris Coleman has criticised alleged corruption in football, believing that anyone found guilty should be banned for life.