Uncle Owen (elder, ANH) might be obscure to kids growing up with the prequels.
He is not any more an "action figure" than would be Queen Jamilla. Owen might have had a few more lines.
Neither are "obscure" in my wants as a diorama builder (though I have and can hold with multiples I have of the 1998 Uncle Owen from the Cinema Scene - though I'm sure an improved, single-carded figure is on the minds of OT collectors).
But I think that:
1) I want characters like these badly to complete groups of characters from particular settings (Theed Throne Room in AOTC - we just got the VC Senator / Refugee Padme, Peasant Disguise Anakin, Naboo Guard, and R2D2 - so that leaves Jamilla and possibly an elder Sio Bibble who has a figure from TPM already, and is more obscure and particular than either Owen or Jamilla).
2) carded Jamilla or ANH Owen could linger like Yarna dal Gargon was supposed to have (but didn't in my area). But while Anakin and Obi-Wan are always on the pegs, I'm not sure how many times a week or month new cases of Anakin and Obi-Wan need to be refreshed. If the main characters are selling, there could be room for single figure slots like Owen or Jamilla - and more obscure ones like Elder Sio Bibble (AOTC or ROTS) and / or Nyrat Agira.
Seriously, I would make totally freshly tooled screen packs of never-before-offered characters without repeats / repacks and offer them at a higher price point - like say as a group from the Mos Eisley Cantina or Padme's funeral scene (the Naberries and elder Sio Bibble and Queen Appaliena).
Jocasta Nu costs a fortune for a 3 3/4" but it's not "un-doable" as I'm ordering 2 of her.
Owen and Queen Jamilla might sell that way, too.
Now I do want Nyrat Agira, but she won't sell as a $24 online store exclusive either.
You need a Club Outlander pack of figures - never offered (and not with Elan Sleezebaggano re-released, especially not with another Obi-Wan!)
Make a 5-pack and offer it for $75 or $15 per figure - or maybe more if really necessary for all new tooling of never-offered-figures.
But if someone's paying $75 or more, they don't want that to include a 5th of it being a $15+ Obi-Wan Kenobi they can get in the store any time they feel like it.