I'm personally divided on this subject, I don't think Jagex realsed this skill with the intention of making money off it. I think cons is more of a way to channel your money into something productive i.e a skill. Cons is F U N, kill your mates in combat rings, have fairy treasure hunts, hold events and parties, these are just novelties, not forgetting the usefullness of the skill, making Prayer training much easier and the accessability options are great. It is a massive money drain in the other hand, basically you have to spend money to level it fast and effectively. With the amount of money you spend to get to say level 70, you could probably spend that money on another skill which would get it alot higher than 70. But that's what Construction is about. Personally I would rather spend my humble 3mil on Cons than buying, say some armour, because I think you get more out of raising a skill and the rewards you recieve off the skill alone. My answer ; no Construction is far from pointless. :