It pains me now to say that after I finished Armada, I hit that "I'm 12 now so I can't like stuff I liked when I a 'kid' anymore" phase. I also never got a ton of toys from the line, though I did get a handful. Since I started collecting, and it really hasn't been very long, just over half a year I think, I've caught myself up with all that I've missed.
It really sucks what all I missed, haha. I love Armada, and I always will; I grew up on G1 reruns in the early 90s and Beast Wars through its run. My interest fell off during Beast Machines; to this day I still hate most of the designs, and I remember simply not knowing that RiD even really happened. The only toys I have from that line are a few Spy Changers. Armada brought back everything I'd love for sure, at least for awhile.
But back to why I regret that blasted phase the most, I missed out on Energon completely! Yeah...the cartoon leaves a little to be desired, but the entire toyline is combiners! The. Entire. Line.
So recently I've been focusing a lot of my spending on picking up things that interest me from that line, especially the Gestalts. Thus far I've snagged Steamhammer and 3/4 Aerialbot limbs. I'd really like to shoot for at least one of each mold. Plus I snagged an Energon Road Block at a decent price. The Inferno mold is pretty nifty, but I can't stand the original head.