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What for, the 2gb?

No. I need 2Gb to replace my Pi 3 (I have like 10 and a few zeros). I will specifically order a 4Gb to try running a Bitcoin node.

They stopped selling the Pi 4 1Gb and reduced the price of the 2Gb to the 1Gb price, so the 2Gb is the sweet spot for 99% of use cases.