I saw some twit put Black Super fire convoy up for something silly like $11,000 I suppose if you did actually have both Black Fire Convoy and Black God Magnus they'd be worth several Thousand Dollars. Oh and I'd say Antagony is typically ranges from £99.00 to £170.00 so I suppose $300.00 is around the top end of that. when I nearly bought one a time or two she was about £130.00 I've seen that Green Unicron for $800.00 mind Blue Big Convoy was about that and the Blue Beast Convoy was about $300.00. But something can be rare and yet not insane prices things like Gold Primus "Rodimus Prime" and the staff incentive Gold Hotrod are not more than a few Hundred each $600.00 or so. If we want to talk about things that were cheaper I can say I say Micron Megatron's lucky draw (the tanish one) and Galva-Lio Convoy for $325.00 The Silver and Purple Metal Convoy was as cheap as £70.00 and the Gold one was about £130.00 I paid no more than $85.00 for some of my rarer stuff and some things were as cheap as $25.00. Sometimes something isn't worth the money (like a Superion Boxed set) and other times they are undervalued perhaps like Eggbeasts.
Recently, this is the the most expensive i've seen. TRANSFORMERS HFTD CANCELLED TARGET EXCLUSIVE ARCEE ELITA-1 CHROMIA X3 LEGENDS | eBay And other times it's a Fort Max going for like £600.
How much do the (genuine) Japanese dino-tapes and extra Headmasters fetch? Maybe there should be a "price-per-weight" category.
$1999.99 some guy with his head in the clouds every once in a while lists a black lucky draw magmatron on ebay for that above price... never sales it either....