pass x250 vs 250.5

I know threads such as this one have been created before but I figured it would be okay if I re-introduced the topic. The current used market price of an x250 is $2200-$2600 while an x250.5 is roughly $1500 more. Is the .5 significantly better than than previous model (enough to justify the price)?

Thanks for your commentes
Without a doubt YES. It is much smoother, richer midrandge, more depth to the soundstage, low level listening is dramatically different with greater dynamics and overall listenability. Is it worth the price difference? You bet.
The answer that Tpk123 gave you is spot on the truth. The X-.5 series was a great/dramatic improvement over the first generation X series. In this case the price difference is well worth it.