Does anyone know how many times we can expand our inventory and the cost for each?
First - Quest
Second - ?? s
Third - 3g
Fourth - 80g
Fifth - 100g
Sixth - ?
Seventh - ?
While this isnt related directly to your question you also get expansions for reaching level 50 and getting the 'Gathering Master' achievement.
I believe it is on top of upgrades you can buy. I haven't purchased the 5th upgrade yet though.
It's bonus. I have everything I can get so far, or know of. Level 50, all the purchasable ones, and the gathering one. I have 12 rows of inventory.
I have 11. How many purchaseable upgrades it there. I am currently at the one that will cost me 100g.
That's all of them. 100 gold is the last. You also get one for 300 in all gathering, and one at level 50.
Apparently the quest 'Bolstering the Front' gives more space as well.