Ah, pedals!
When I got my Helix LT about two years ago I had about 50 pedals. I felt this unit made some of my pedals expendable due to duplication (OCD, DS-1, ProCo Rat, etc), better amp sounds (my Tech21/Joyo/Mooer pre-amp pedals) and ones I just felt I didn't need anymore like all of the Digitech Hardwire series that I had. I ended up selling over twenty pedals.
However, I've also added about 15 new pedals to my assortment. These mostly covered areas that the Helix does not like the EHX SuperEgo Plus, Hologram Infinite Jets, EQD Arpanoid and some non-traditional reverbs such as the Walrus Audio Slo, Old Blood Noise Dark Star ,EQD Transmisser and EQD Afterneath. Also, since I don't think too much of Helix's fuzzes I got the Way Huge Havalina and then there were two pedals I couldn't resist from JHS analog pedals (despite the creepy rumors about the owner), the Muffleta which gives you 6 different Big Muff variations and the Bonsai which provides 9 different Tube Screamer variations.
I'm trying to now keep it to no new pedals unless I sell one (or two) first. We'll see how that works.