On Ebay, ya, maybe. You're kind of at their mercy when official sellers empty their inventory.
Honestly though, Blackmagic really should make a successor (I don't consider the Ursa Mini the successor). They need the DSLR/Mirrorless entry camera that the original represented, that sadly didn't happen, because of the extra accessories needed to even use it. And with tech getting better and cheaper on the 4K side of things, they should take advantage of it. Especially with USB 3.2 coming out now, matching the old Thunderbolt 2 port's speed.