This section is a bit dead at the moment, so Ill try to fix that.

What would you think about a metal almost identical to 7075 aluminum, but only 2/3 of the weight?

Good, some heads are turning. But this isnt any special alloy, but 99% pure beryllium. After Ferrari started using it for the pistons in their engines, it got outlawed in both Formula 1 and BattleBots (not in Robot Wars though).

Why, I can hear you ask? Because it offered an unfair advantage for those with endless piles of money. While a kilo of regular 7075 aluminum will set you back about 20 euros, a kilo of 99% pure beryllium will cost in excess of 4000 euros!

Anyones intressted in buying some?