Powder vs tabs - long term

I’ve only ever gotten tabs and planned out a reeeeaaaally slow taper over the next few months…

Just never tried the powder out of convenience I guess.

Is there a major pro to using/buying the powder?
Sorry I suck at math…but is it a lot cheaper than tabs?

Is one better than the other for long term storage?
Or is the main appeal that you feel it faster?

I appreciate anyone’s support, getting anxious about the deadline and making my last few purchases asap

Stay safe out there