Yes. I believe between extra mats and dismantling the blood (or even gambling accessories from them) is worth it. Though if you are starved for gold and that is your main priority it is understandble if you do not
I always do. Leapstones or not, the accessories sometimes hit the jackpot and more often than not there is at least 1-2 that are sellable that would cover the cost of the bonus chest. Just this week, I covered the cost on my main and hit jackpot with one of my alts that gave me 2 peices worth 2k+ each. And the chest is what, 400g ?
It’s pretty much like the big Una chests, lol. Sometimes you get a little bit less than if didn’t clam but most of the time you get more by claiming it, with a tiny chace of big profit.