okay you get your point.
So it seems to be no risk that all will sell out, but it can at least happen like it was by the initial release of the Riftwatchers that the packs till the next airdrop will sell out in this short period of time.
In every case I think since this proposal goes live nobody will buy riftwatcher-packs for 5$ in SPS.
Even when it would be a very good business in the past to use your SPS to buy riftwatcher packs compared to stake them when I see how the SPS-price dump more and more, but if you expect a further price dump you can sell your SPS completely and need not to buy riftwatcher-packs.