I’ll guess that anything < 9 months old will cost 3k. Anything > 9 months will be 1k.
INB4 2k credits for reoccurring legendaries. I mean, it’s a nice in-between?
Just want to say that I called it. 
How does them being a silver border and 2 stars have anything to do with what they are just guessing for an event?
You are getting way too worked up over this. It’s just people’s guesses. Step back and breath a little bit.