I mean, obviously it's not an OP game changer but Fixer in particular becomes an awesome medical merchant with Salesman. Goofing around with a ridiculously limited build which ends up popping chems like a Skyrim character eating cheese wheels, and the ability to go back to Fixer and buy his chem pistol parts, assemble them, and sell 3-4 of them back to him for so much profit that I can also pick up all his medicines and still break even on the trade is really very helpful. Also clears out a lot of that not-quite-bad-enough-to-scrap, not-quite-good-enough-to-repair gear that might otherwise not get sold.
Anyone got any input on how well Disassemble would go with Salesman? It *sounds* like Disassemble would be best for low-Mercantile builds, sort of opposite to Salesman. May give it a shot anyway next time I'm up late not sleeping