i've been reading a bit with the help of good ol google. i have come to the conclusion that i should be spending gold earned on opening all the adventures, if even just to keep options open for the future.
i'm curious if any of these adventures will have an immediate benefit, so i know which order to access them.

The current adventure has interesting cards but none of them are a big deal

TGT is the big one you should be getting
Naxxramus is probably one of the best sets in the game but it's rotated out of Standard so not really worth it

This post was edited by FroggyG on Sep 1 2016 11:13am

TGT is a card pack though, should i not be opening the solo adventures?

i dont think you'll be able to enjoy the game without money invested
but, if you dont want to use real money, i'd say, dont go for BRM since its the expansion that will last the least time in standard
naxxramas can't be bought anymore iirc

so, i'd say go for LOE?
not sure if it's really worth it tbh

Buying classic packs is still the way to go IMO.

probably yea

i've read the solo adventures can give you cards to disenchant? i believe they stated the gold used had a decent return looking at it that way. could that be confirmed?

Yeah overall classic is the best way to spend gold

you mean is it worth to buy adventure to disenchant cards ?
no, it's not

Well that really depends what your goal is and what you already have.