"Everybody" doesn't say solar, wind, or batteries is cheaper than nuclear. The question of what is "cheaper" at any given time isn't really relevant at this scale -- its cheap.

Price and availability of electricity and power is more or less global, however datacenter customers are in the situation where they need to power a city with electricity in a location where there is neither an existing city nor its generation capactiy.

> why not pour even more $ in those then since if it's cheaper = you get more kw for the same $?

Law of diminishing marginal returns: you don’t. You either need to pay a premium for expedited delivery or eat the time value of delays.

Spreading your bets is considered sensible.