That bit there. Nowhere does it say anything about there being a lot in the county at all. Just that those of us close to Santa Ana have options if we want to shop "legally". I don't stick exclusively to compliant places, but if I wanted to I wouldn't be without options. What do you consider a bunch?
For me, I see renewing the rec as a small price to ensure uninterrupted access at a reasonable cost at least for the first year of rec legalization. The rec itself provides no legal protection really, none of this is legal federally and that's the only threat model after prop 64 for consumers.
There is a limit of 20 BB compliant dispensaries in Santa Ana. I would say "a bunch" would give easy access to all who wanted it. Since none of those less than 20 (I think 18 right now.) are out of Santa Ana, I don't think "a bunch" is an accurate statement in regards to the county.
Also, while the taxation scheme of legal recreational dispensaries will almost assuredly result in higher prices for recreational over medical, that taxation scheme is not in effect yet. There is a big difference between the cost in a regulated and taxed BB compliant dispensary and in one that is not. Be sure to add in the cost differential in the calculation in the small price to pay.
As a side note, I would recommend no one who has a medical recommendation fill out an ATF 4473 in the hope of obtaining a firearm.
What a recommendation does is provide proof you use, access to locally-licensed dispensaries (Many would prefer the term cooperative or co-op as there is no provision in the law for store front sales.) and an affirmative defense to possession. (Only the county issued cards provide a relief from probable cause for arrest.) Of those, access seems the benefit today. With the number of retailers who are willing to sell under recreational "rules", access is of less value than before. It's still worth something. (As related by Stu and the delivery service he uses.) But, that "something" is less than before legalization.
I have no problem with people just continuing as they have. However, some may benefit from knowing the current legal framework. Saving some money by going to an unlicensed seller is not a high risk proposition--at least from the perspective of legal liability.