Very well said. By my point of view, the hidden answer in eric's post is, wait for the new mythics to be released.

Assuming there will be new armors (new amulets are certain), a lot of people who have accumulated enough gold will switch to them and also another large branch of people who plan to gear up will probably save to buy the 41 mythics right-off (not buy the 26-31's first, which they'll have to upgrade). Thus the demand for mythic items around that level range will fall steadily but progressively, allowing access to them for the group of 500k-1m budget.

tl;dr: Save your gold.