VERY upset, lost over 18k on my Rend Staff?

[League]

If they introduce a new skill like Leadership, and people max a skill like Sailing before they could get information to utilize it, then something like that is unfair. But a price update,though unfair as well, isn't too unreasonable. Honestly, the weapons only do a slight increase in attack damage.

Don't believe I'm not pieved, however. I've been saving for a War Sloop, but bought the Tri-Barrel when it got the requirement level lowered to 10. However, the price is now something like 2000!

Any change that could effect previously made decisions that were tactically made are unfair and undesirable, in addition to ungood.