I don't think I've bought a single plug-in in 2015.
2014 was a pretty slow year too, compared to the previous years. Well, I did upgrade the studio computer, and I did upgrade Logic and Pro Tools. Since Logic now includes Alchemy, I rarely ever use any 3rd party plug.
Software-wise, I don't think I need anything more - I see my DAW as I would a hardware recorder. A very finite, close-ended system.
I did buy a used Command 8 control surface for Pro Tools from a friend earlier this year, and I finally bought my Gibson Les Paul and an Epiphone Thunderbird bass.
I should have the budget to finally get my Marshall head and cab next week.
Besides an acoustic, I don't see myself putting money on anything except soul treatment. (Though a laptop running Windows XP/Sonar 8.5 would be nice to re-open old projects. :P )