I'm still very much focused on getting the highest airdrop points I can above all else. This means I rarely spend my DEC in order to keep that 1:1 ratio.
I do the same. The only way I spend DEC is if I sell a card and then use that DEC to purchase another card.
Yeah, it's a little bit of a shame because buying cards with the DEC coming in was such a fun part of the game for me.... but I can totally resume that funness once the airdrop finishes.