Paying Cash for Primary Residence

[Ace A.]

Hey guys, so I'm currently renting and looking to buy myself a primary residence. So, if you could pay cash for your primary residence, would you want to and why / why not?

I heard even, Mark Zuckerberg has a mortgage on his house, but it's a super low rate that only the elite has access to; 1% or something like that.

Note: I currently pay more taxes on my income then I would like to (Full time job, and a few rentals) and getting a mortgage would reduce my realized income.