Wait for sure!

Dungeons are small and there to provide a crafting material, so no not really.
Builds are from crafted tiered gear like Minecraft + advance on use skills, so no not really. Correction, the troll armor gives a stealth bonus so if you want to sneak use troll armor.

Okay so that mixed with every quarterly goal being removed except for Hearth and Home which was pushed to Q3 (putting us half way through the target window and still no content update to play) I say save your money.

You can always spend money but you can't always NOT spend money.