Litespeed no long fabricate frames like Ultimate & Blade with full 6/4 tubing, rear wheel cut-out, tapered tubing from end to end.
For general population, non-sanctioned competitive cycling, recreational cycling, the benefits of ride character difference between a current ti frame vs used ti frame at fraction of the cost is something that should be considered.
Personally, I feel that ti frames (or cycling in general) are about value, since they are meant to last for a lifetime of riding, the least you spend to achieve your cycling goals, the better value you get in return.
If you can satisfy your cycling needs with a $500 used titanium frame that lasts you a lifetime, do you really need a $4k brand new ti frame with one-piece, cast B/B chainstays?