I'm right there with you. I thought Vouchers would quickly drop to the $4 range. The FOMO right now is insane with this Dr Blight Card.
I'm almost afraid at this point to make a prediction. That said, every once of my gut is telling me it is going to easily drop to sub $4 now that the main benefits will be gone.
As for giveaway entry: I'll go for dealers choice. I love SBI but I also could use those Harvesters.