OTOH, it's not like Sigon's set really merits a level req of 25 either.
If I was going to rant about a set, it would be Death's. Leather Gloves, a Sash, and... a War Sword !?!?! Two of the lowest level items and the highest level normal one handed sword? How could it get worse short of tossing in exceptionals/elites?
It would be nice if the items in a set were all natural drops to the same act/difficulty. And the set itself powerful enough be worth wearing for a few acts after that. Though this may be what you were implying.
It's the gamepiece jackpot mentality of having one key piece that's near impossible to find that's annoying to me. Why make set's if no one's ever going to complete them. (Deviant's like KoP and co., excluded

)
I lump that with the idea that "it's not gambling if it's possible to win".
For Roland:
I think "way cool" items should be findable, but rare enough that I say "way cool!". But, perhaps it should also work that as the group size gets larger, the drop rate should decrease. So uniques should be pretty common in SP, a touch less so in LAN play, and scaling down on realms, depending on the realm size. DSF may just be the right size to correspond to the existing drop rates.
It depends on what dynamics you want to encourage on the realm. A commune of people sharing? Rugged individualists?
At home - for SP and LAN - I'm running a modified Sanctury Reborn. Though the only really noticable thing about that is that I found the Fire Lizard hide boots. (The first elite unique I ever found. I was jazzed - it was even useful for the trap assassin who found it.) But all the extra runewords and recipes look neat, even if I haven't used them.
My personal mods (may be in SR, too) are:
- cube all runes up, don't stop at Thul. (Easy to add the recipes to cubemain.txt.)
- 1.06 gambling odds (Have to edit d2game.dll, afaik)
- gamble all items - include all class specific, rods, gems, charms (easy to add to gamble.txt) - rods need a high gamble price since +skills are so over valued for resale (weapons.txt)
But again, this is SP to (rarely) 4 people.
- CH