I totally understand what you're saying... and I guess we'll have to wait and see how it pans out.
If you don't participate in the presale, then you'll get vouchers for free for your staked SPS that you can then sell to the whales early... hopefully you'll make some money that you can spend on packs after presale... effectively getting booster packs for free.
i'm thinking this way the truth is
but as you said we have to wait and see how it goes