Best equipment on sale

[Beemz💖]

I had a quick look through.

Four Ring - $500. 10% physical resistance, 3 mp regen, 12 hp regen - this is great for a tank character. Useless for a mage. Consider 4 of these for a tank.
Polished medal - $479. 10% physical resist, 9% crit, 45 health. For a rogue or other physical character.
Greater lava amulet $416. 39 magic, 1 mp regen. Four of these could help a mage, but the mp regen is a waste of time.
Pointy amulet: $383 -5 threat to keep people from attacking you, +5 initiaive to give you first attack. +10% crit (useful only for physical characters) +2 attack (somewhat pointless).

Also
Luck amulet $393. +5% crit, +5% xp, +5% gold, +1 dice rolls. Awesome for dungeons/blacksmith, but pretty expensive to buy 16 of these!
Elite Harpy Beak $433. +25% potion effect, stack 4 and then spam Greater Xp Potions with soda can + soda bottle + sushi + wood table + comic book guy + simple door + confuser

[blacklight101]

Don't forget the Blacksmithing rings! Four of those stacking 20% (80 total) discounts on any crafting is a huge bonus. Makes those failed crafting attempts a lot less painful on the old pocketbook.