Long-term tax-breaks for something like a factory, which will ideally employ hundreds or thousands of people for a very long time? That can make sense. There's a lasting, local benefit, and that benefit can stand some encouragement. Real, local people will have real, local jobs. It can be good.

Datacenters aren't like that. There's a huge construction phase where billions of dollars get spent followed by dozens of long-term employees. The local benefit is mostly just a flash in a pan while the tax break lasts for decades.

Besides, it seems that datacenters are universally unliked by constituents in areas where they pop up. This makes arguments for tax breaks for datacenters seem illogical, at best.

Unilaterally, these favorable arguments come down to something like: "Well, if they didn't offer the tax break here, then Metazonaigoog will just build their new datacenter somewhere else instead!"

To which I can only retort: "Really? You promise? Don't threaten me with a good time -- go ahead and build it somewhere else."