It has been quite the last 18 months...
Approved for my Discover IT card in Feb of 2015. I enjoyed many of the $1,000 CLIs during the craze when Discover was handing them out every 16 days.
Since then the time frame between CLIs has increased. Every CLI that I ask for ends up going into a 2 day review - but more often than not if I wait at least a month between increases, I get a hefty amount (4k-6k).
Well today I checked and I just got another 6k CLI bringing my total credit limit on that card to $44,000. Unreal. When I was approved for this card 18 months ago, I had a SL of $3,500 and the highest APR they offered (FICOs were around 650 then). Now it is my highest limit, and when my 0% promo APR ran out, they reduced my APR by 6%.
I only use this card for the 5% categories and the Discover deals, but it is definitely ALWAYS in my wallet regardless since they treat me well.