Thanks for all of the quick replies! I probably shouldn't have used the word "authentic" - we are looking for replica. One ebay seller mentioned (in small print) that there were some "mistakes" on the tag or something, which made me think that there are some knock-offs around.
It seems every time my boys get a new jersey, the player gets traded, injured or whatever, so they stop wearing the jersey. I have a hard time paying $75 for that to happen, considering other items on their Christmas lists.
We have 2 jerseys where the print has started to come off in the wash and I have followed all washing directions carefully. One happened after only 2 washings!! Of course, that is DS12's favorite jersey (Owens) so I think he holds it against me!! Of course, now the Owens jersey has become obsolete LOL!
I guess I'll watch for sales (Finish Line, etc) - we don't have Value City in our area. Our JCPenney only carries Patriots/Celtics jerseys, which my boys don't like (BTW DS12 is 5'7" weighs 135, so we're definitely into adult sizes!!).
DS16 has one retro jersey (Michael Jordan) - he says retro is the way to go, because you don't have the issue of the player leaving the team - it's all history!!
Thanks again for all of your suggestions!