Let's go even further back.
Omg...I only have the mark IV and I forgot how cheap it was. Funny how it seemed expensive then.
Gotta say though, with all the ironman releases and sticking to just one ironman, it took mark 43 to finally make me upgrade to a newer ironman.
Even with all the cool designs of the other ironman, the sleek design of the mark IV was hard to replace.