Don't buy a bird because you want a talker, a cuddler, a pretty color. I find that many buy a bird wanting a specific trait but when their bird doesn't fit into that exact mold they are disappointed. Many don't realize how individual each bird can be. Yes 'too's tend to be cuddlers, but that doesn't mean that every 'too is one, or even one that is (a cuddler) wants to held 24/7.
It broke my heart one day I was perusing craigslist and saw an ad for a senegal rehome. It stated that they wanted to trade for an african grey because the sennie didn't talk or liked to be held. One week later I saw an ad listing the same phone number and pics as before, trying to rehome a grey and a sennie
I also heard about a macaw that was surrendered because it no longer matched the decor of the home.
And then there are the people that want to get a rescue bird solely because they heard that "they're cheaper and I don't want to spend a lot money on a bird".
But I could go on and on.
Many have forgotten this truth, but you must not forget it.
You remain responsible, forever, for what you have tamed.
-Antoine de Saint Exupery