Well, I have a plan for buying through 2020.
I started in June and goes through December 2020 (most of the last months are TBD or waiting for molds to be redone for classicminiatures.net or based on the hope Iron Wind Metals actually resurrects the Wizards, Warrior, Warlock line.)
That said, here are the early months of my Excel spread sheet to give you a taste of how I am planning my buying as I head into retirement.
Since I have hundred plus 1/600th aircraft to paint I am holding off buying anymore until 2017 or later.
So basing my plan on target date to receive my items:
June 2016 6mm charaacters from Angel Barracks – received.
July 2015 Arenas for Gladiators in 25mm and 15mm sizes – received.
August 2016 buy 15mm Gladiators (actually ordered from Italy recently so they may arrive early)
September 2016 Der Kriegspieler dwarf figures (unit fill) from Classicminiaures.net planned.
October 2016 Venturian 15mm squad plus command (unit fill) from DarkestStar.com
November 2016 Thanksgiving break (no items)
December 2016 Christmas Break (no items)
January 2017 Elves from classicminiatures.net
February 2017 TBD possibly Rebel Minis, Splintered Light, or Khurasan.
March 2017 (more elves, different poses as previous month)
April 2017 Birthday Break (no items)
May 2017 Lesser Goblins from classicminiatures.net (unit fill)
June 2017 Asgard Dwarf Pikemen
July 2017 additional Lesser Goblins from classicminiatures.net
August 2017 Mayhem rules
September 2017 Historical but TBD exactly which
October 2017 Science Fiction but TBD exactly which
November 2017 Thanksgiving Break (no items)
December 2017 Christmas Break (no items)
And so on through January 2021 when I should be finished (much of 2018 through 2020 is set aside for small new projects or small unit fills.)