So, where did you get this bird? I peeked at US Parrots on facebook, just a little. They had a pan of baby "blueish" Ringnecks photographed halfway through March. Later on in the year they posted a photo of (I guess) one of them as it was older, claiming it talks a lot and plays on the kitchen table. No ring.
Making a snap judgement based on easily-manipulated internet information (so, no real basis for forming an opinion....) I think US Parrots looks like a "good risk" for getting a nice bird. They do seem to have quite a bunch in the area they photographed, and I'm not thrilled with the cage sizes I saw there, so I can't say I'd back them 100%.
The question is, "How and when did their bird get to where you bought him?" He could be an older bird or failed breeder sold on, or he could be a rehomed pet, or he could have been sold to a store as a baby and just grew up waiting for a home. It doesn't matter a very great deal in the long run as long as his personality is acceptable to you.
How do you feel knowing your bird is not a baby? As he gets used to your home, he may display behaviours you were not expecting. Listen for speech or noises he may have learned already. Talk to him, play voices of other birds off You Tube. Offer him super-good goodies in his cup and then offer the favourite ones by hand, keeping your hand low, and holding the food through the cage bars. Of course do the whole move slow and gentle thing. You might get a wonderful surprise. Congratulations on getting a beautiful mature bird! Let us know if he starts doing "interesting" new things around the time of the winter solstice.
Not sure if this could be a sign of the so-called "bluffing". I should also add that he's been here for about 3 weeks and hasn't really made ANY sounds. I hope I haven't traumatized the poor little guy. How long does it usually take for them to adjust and start to feel comfortable? 
