The S&W Core rules state that "endless series of 'another treasure worth 100 gp in total'" are boring, but endless series of "Gem or jewelry worth X gp in total" are not much better. Here are some tips for getting the right balance in your treasure, whether it is a local thug's stash or a dragon's hoard.
In the spirit of endless randomization S&W provides tables for treasure generation. However, rolling through the many nested tables took forever, and I ended up just looking at the lists for a cool item or two every time I wanted to make a good treasure stash, which defeats the whole point. I also felt that even minor items were too scarce, and I wanted the ability to randomly create a truly rich hoard if the circumstances warranted.
S&W uses 'tradeouts' to accomplish treasure generation, whereby gold amounts are swapped out (10% chance) for a roll on gem/jewelry and item tables. I start with major tradeouts (5000gp), lowering the total gold amount if necessary, then calculate any medium tradeouts (1000gp), and then finish with the minor tradeouts (100gp).
Example for minor tradeouts: If the total pot is 650gp, there are 6 rolls to determine if 100gp will be traded out. Each successful (10%) roll lowers the total gold pot by 100gp and adds in a more interesting item.
Note:I have tried to fill in everything I can (still working on spells), but it may be the case that you'd prefer to give your mage something he can use rather than have the only magic sword he has ever found be a Two-Handed Sword, for example. Just about every time you see a specific weapon or armor you can assume I've just randomly chosen one, so you can switch it out for a different one without violating some inherent S&W property. I think this might not be quite the same for the Arcane Items supplement (there's a Swords table). You're the Referee, you make the call.