[What To Buy With 1000 Platinum ?]

Hi everyone. Today I received a 75% sale off and manage to get 1000 Platinum and I'm wondering what to buy with Platinum

 

I'm not looking forward to be a collector that need to have all Warframe/Weapons in the game. I'm here to have fun with the game. So what should I Buy?

Warframe?

Potato?

Weapon? ( nah )

Slot? (Not really needed but maybe some ? )

Cosmetic? (Will do IF I have Extra left)

 

Thanks for reading.