Only place I have slight problems with my 30 barter is in NCR. But I'm cheating. I use this bad mo-fo
MX1100 and can scroll down to the bottom of the list in NCR in 3 seconds.
I already once suggested a fairly simple solution:
- Hello, I'm the trader. -
A) Hi. Show me your stuff.
B) Hi. Got any energy weapons?
C) Hi. I'd like to buy ammo.
D) Hello. I'm interested in miscellaneous items.
Simple, unless adding more than one barter screen to one NPC is impossible :/