Classics G2 sideswipe from the Botcon 2010 customization class. I still need to finish painting his face and get Venksta to make me some of his red alert guns in translucent green...
My rarest would be TFcon Toxin followed by Headrobots Gyro kit. Also TFcon Stronghold, legends Cosmos and Wheelie, Aveo Swerve, City Commander, MJ's Junkion kits.
Lucky Draw Flame Convoy Sky Lynx Edition Movie Scout Reverb (one of the "unreleased" three that made it out) Robot Heroes Ricochet/Predaking and Tigatron/Inferno JAFCON Black Convoy Beast Wars Neo Black Big Convoy Botcon Japan Double Punch All of the 2010 Family Mart exclusives except the Legends and glasses Takara Beast Wars Terrorsaur Telemocha Waspinator Car Robots God Fire Convoy gift set Micron Legends Crystal Convoy and Scourge/Nemesis Prime A bunch of other stuff I'm forgetting that qualifies as "rare" or "expensive when it's available for sale."
I don't think I own anything I would call "rare" lol. I have a bunch of classics/universe/RtS/generations, a growing collection of Fansproject stuff (completed Bruticus, CC, Protector, Defender), and a few Alternators though.
Squawkbox. Not sure if he's rare, but he was a horror to find. especially in the condition I have him in.
Probably not what you were looking for but the one that I brag about hte most is getting a ROTF Brut for a steal from my cousin's son. Almost felt bad about it since this thing was going for $150-$200 on ebay at the time. So I guess getting ROTF Bruticus for cheap is pretty rare.
Botcon '05-11 box sets, pretty rare as in UK. All 3 FP Commander armours, Protector and SS. 84-86 complete. All classics. Some awesome customs Fort and Brave Max MIB Rarest as in one you just never, ever see. MIB Action Master gutcruncher, this guy is minty and isn't even displayed with my collection.
probably my first release city commander & shadow scyther, or my complete botcon 06' Maximals. Nothing to brag about I suppose but I LOVE my Universe 1.0 Nemesis Prime... I think it's the greatest repaint since Energon Dreadwing.
heheh Yeah, I got both RotF Bruticus and Superion from a friend that was just wanting to get rid of them for $20 total. They got them for clearance at Target, so didn't want anything more for them.
these i guess: Overlord MIB Stronghold, Toxin, and Night ops Reflector free aveo swerve, and retail price for all the others TFCon and first release of the other two commanders
A $45 Aveo Swerve (and free first class shipping). I've never seen another Swerve go for anything under $50. Send them to me and I'll check for you.
My Rarest TF is probably my Hard Hero Wheeljack Bust,I bought it 3 or 4 years ago,and it is limited to (I think) 1000 pieces,and mine was numbered at 997. Even though some people may not consider that a true TF,I do and he was worth every penny of the $25 I paid for him with shipping.I may have some figures that are popular but I wouldn't really consider them rare like the Takara MP Grimlock and BW Neo Heinlad.
I had to read the entire thread to make sure I don't end up posting anything that someone else already posted... since then it wouldn't be very rare now would it? Just a bunch of stuff... French red feet G1 Optimus Prime MIB Canadian G1 Jetfire RID Camo Rollbar prototype MIB Kingdam Starscream MIB Kiko Chutai Beetras Beet-Gugal AFA Antex Camaro DoTM Backwards Laserbeak probably some other stuff.