should I max my golems
Answers
There seem to be Megas for almost every Mon ... but that does not come until Gen 6, so who really cares at this point?
BTW How did you come by so many 100% Mons? Optimists would say you are fortunate or tenacious in your hunting. Cynics would think you have been using some serious IV scanners or perhaps buying accounts. I am NOT accusing you of either ... just skeptical to see a post with so many 100% Golems and Eggs.
Hkn's response is spot on! Golems are excellent (for now) but if another higher Attack stat Mon gets double rock moves, then Golem will become a second tier raider just as Gyarados and Vaporeon became somewhat irrelevant once Kyogre arrived on the scene. certainly the lacklustre Hostess Hoho is not so appealing to you to make you want to flush 1 million plus stardust! The Golems you show are adequately awesome to do some serious damage!!
Additionally, Gyarados's double resistance to ground, from its Flying type, comes in handy when fighting certain ground pokemon that are weak to water (Groudon, that we've already seen, as well as probably Rhyperior and other future ground/rock pokemon.
Sure, Kyogre is stronger overall than Gyarados, but Gary isn't completely outclasses in every way by Kyogre like Vaporeon is. Further, Gary has Waterfall, which is way more effective than Water Jet as a quick move. So Gary is still useful, while Vaporeon is just a second class Kyogre (but is still way better than Starmie or a host of other meta-irrelevant pokemon).