As it stands the Polychoron Vault has a limit of 1 per planet.
Any chance of that limit being upped to 2 per planet please Dan?

Here's the logic: There is only a finite amount of storage planets you can have, as you only get to colonize rank /4 +1.
Each rank adds 150 to max research cap and each planet gives 500 mins and 1k arti to cap,i can't remember what caps you start with at the beginning of the game.
As an example: Wolfy Minion is rank 2123 (that's 531 max planets) and stated he had over 180k arti an hour.. That's a natural cap of 265,500 mins, 531,000 artifacts and 318,450 research.
Now to get that kind of ap you need a lot of good planets, even if all had a poly vault on them that only adds 531,000 to each cap, bringing the total to 796,500 mins, 1,062,000 arti (5.9 hrs) and 849,450 research caps.
Now I have no idea how many storage worlds Wolfy owns but to hold 8 hours he would need a total of 1,440,000 for his arti cap (basing it on 180k artis an hour) needing at least 18 arti storage worlds (at a cost of 1,440 GP or a crazy amount of CTP) just for arti alone, that's not including any mins or research storage. Even with 18 full storage (5 of each storage) it would only add 180,000 to research and mins and 360,000 to arti. Bringing the total to 976,500 mins, 1,422,000 artis (7.9 hrs) and 1,029,450 research. Granted I haven't taken the Galakis Transport (+400 to all caps) in to account.

Now remember this is based on all 531 currently available planets having a poly vault as well increase from rank and planets colonized and I used Wolfy because I remember him saying somewhere on the forum he had over 180k arti an hour (not many have this but it is definitely attainable by anyone).

Being able to put a 2nd vaults per planet would still mean GP storage would be required and Dan would still make money from storage and would also give the none CC/GP players a little help with storage issues.

The 8 hrs i'm basing the maths on is equal to a Dark Smugglers Cache, a shift at work or a decent nights sleep lol.

I find this very unlikely as one of Dan's big money makers is extra storage, I think it as exceptionaly kind of him to give us what we got.

perhaps a way to upgrade them would be nice

Like was said before, Dan makes a pretty penny off of those extra storage artis, just put a Vault on each of the planets you could care less about. I for example went through all my planets, flagged each one that I could care less about but don't want to spend 5 GP abandoning it, so I'm working on dropping a Poly Vault on each of them so as to entice lower ranks to invade and free up a planet slot.

Almost all my pants planets have a poly on already and some other CTL stuff in the hope that some of the newer players want to take them but they never seem to. *sad trombone*

I see what you're saying about GP storage draxsiss, you're right that Dan is kind enough to give us them (polys) and I suppose towers can be bought and sold for CTP but would still be nice to be able to have 2 polys per planet or an upgrade like detregets suggested. It would give higher ranks something to do with all the MSPs that come in and most of them i'd imagine have vaults on all available planets already.

-would gladly take them lol-

Even a CT Lab arti that bumps their bonus up to 1250 or 1500 would be awesome.
Slap a 500 energy cost on it like the other new structures

Even that would be awesome