Not sure exactly what you mean by that. There's a few Japan Metro 4 strings available at around $2K. Mostly, they are maple fretboards. The Pau Ferro Fretboard models seem more rare and also seem to fetch a few $100 more from what I have seen lately.
It's my opinion (Only 1 guys take on it) that the MIJ Metros are going to continue to go up in value even if the Warwick Sadowskys are welcomed equally.
I would not Take less than $2750 for my Yoshi Era Metroline with Pau Ferro. That's because I know I could not replace it with any other metro that I would consider on par with it.
TLDR; Jump on the $2k Metro's while you have the chance. Pay a little more for Pau Ferro unless you like Maple boards better.
I've been tracking j5's and both used sellers i was onto have withdrawn them and one has relisted at 2.3k. That's where my discussion about which Metro came from, both listed as Japanese and 'better' than German build.
In Euros I can buy for 2.4 upwards new, but since I'm not desperate to have one..I'd just like one..it is now likely I'll miss the boat.
In general though, mid to highish end basses have increased by around 20% in 6 months or less, ime.