Guild Wars 2

Hi, I hit 80 a week or two ago. Ive been slowly farming some Kharma, but amidst the many posts on the forums, I am still unsure what is the correct path to spending.

Should I spend it on Exotic armor? Should I spend it on something else? Should I spend gold on exotics?

I hear people saying that spending kharma on exotics is a waste, and I could do something else with it.

If anyone could lend some advice as to the best way to get gear at 80, Id appreciate it. I dont want to follow the zerg in Orr if I dont have it, if there are other ways to obtain gear/money.

If you want to make a Legendary. You need at least 500k karma.

Understood. What about gear sets? What can I/ should I buy with Kharma? I see that I can buy cultural with gold, but what of kharma?