once i have enough money, I want to make a raspberry pi cluster as a server. it wil be quote expensive. whats your opinion? im going to do raspi 4B fyi. prices:

8GB - $75

4GB - $55

1GB - $35

I want to have at least 3 nodes, but having 8 would be awesome, but $600 i did the 8GB RAM. i am currenty broke so this will not be soon. what do yall think i should do?