[ToyAddict]

Then, if interested, you can also consider the third-party masterpieces. A company called iGear has made several in their "PP" series:

PP01 Faith Leader (Optimus Prime)
PP01B Nemesis (Nemesis Prime)
PP01C clear version of Faith Leader
PP01U Ultra (Ultra Magnus)
PP01E Evil (Scourge?)
PP02 Horror (Megatron) -- not sure if they ever actually released this. . .
PP03J Jet (Ramjet)
PP03A Attack (Thrust)
PP03E Elegy (Dirge)
PP03S Storm (Sunstorm)
PP03D Destroyer (Skywarp)
PP03L Lightning (Thundercracker)
PP03T Traitor (Starscream)
(PP04 hasn't happened yet -- supposed to be Bumblebee/Cliffjumper)
PP05W Weapon Specialist (Ironhide)
PP05M Medical Specialist (Ratchet)

Another group called FansToys is making:
FT-02 Acoustic Wave (Soundwave)
FT-03 (Blaster)

There might be more, that's what I can think of right off, in Masterpiece scale. . .