Yep, getting it is apparently not part of what we signed up for ;-)
On my plan humalog and novalog are both tier 1, this is because the Humalog (and, I assume Novalog) patents expired last year - May, this is when my copay went down from $30 for Humalog to $10. My guess is that this is because Eli Lilley promptly reclassified their product as a "generic". I should add that Walmart (before I swapped to Walgreens) were claiming they paid $478.02 for 15ml/5 Humalog 3ml QuikPens, for which I paid $10. So I guess when Eli Lilley reclassified it as a generic they had already doubled the price (it was $289 in 2012). We're waiting for the generic still; cm'mon, GM isn't that hard!
Meanwhile Lantus, a tier 2 drug manufactured by Sanofi, has a US patent that only expires on 12/2/2015 (US format: February). In the rest of the world the patent has already expired (Nov. 2014). Sanofi got a patent extension to permit this to happen (it was meant to expire in 2009 outside north america, but 11/2014 in NA, so that makes some sense):
http://www.genericsweb.com/index.php?object_id=1135
NOTE: the dates in that article are all in the normal "little-endian" European (semi-Arabic) format.
At this point Walgreens claim they are paying $391.99 for 5x3ml Solostar pens of Lantus.
My guess is that if I had waited a month I could have got my Lantus for $10, not $30, because it would have been NA generic by then, but since I was about to use stuff that nominally expired in 2013 I thought that maybe I should refresh my stock now.
The Novolog patent apparent expires in 2014, but the actual expiration date is somewhat irrelevant because the two drugs are equivalent for almost everyone and all it takes is for someone else, using the information in the Humalog patents, to produce an identical protein, then it's $nothing for any amount: E Coli are cheap.
The two choices I've experienced for processing are BCBS (for Oregon) and Aetna (Microsoft). I'm using moda now (which is actually an insurer, not a processor). Your experiences with BCBS seem to match the OPs with Aetna (I assume, to be confirmed); i.e. the OP has Novolog on tier 3 (now) and probably has Humalog on tier 1. moda has both on tier 1.
I hadn't worked out the classification scam before; it's pretty obvious, if you have a drug that is out of patent you reclassify it as "generic" and rake in the cash until someone else (some dratted commie entrepreneur in China with a big vat of E. Coli just like yours probably) starts producing it too.
The good thing is that since these drugs are going generic the price will drop to something reflecting the real (non-existent) manufacturing costs. The bad news is that in NA we will be privileged to enjoy the NA legal circus as it ensures that no dratted products enter our sacred lands without first being reamed of large amounts of money, which we will pay.