Age is age. CL does not factor.
Your account already exists so it will exist with the CRA for 10 years even if you cancel it with Target today.
I was approved for a $200 Target Red Card at the register when I applied, I spent $185.00 that day and they charged it to my card, I was planning on paying cash for it that day and did not know I would be applying, anyway I immediately went to customer service and paid the $185.00 of that was just charged to it. A week or so later I charged a few bucks on the card and paid it off about a week later. By the time I got my first statement they increased me to $500. However, it took about a 14 months before they would give me a second increase even though I spend alot at target during the year using my card and with perfect payments. Once they decided to increase they upp'd me to $1,000. I have been with them now for almost 2 years and hoping they will up me again soon.
Every time I type this I think about how it looks -- Target Visa is my highest limit, Amex Delta is my lowest...
Opened a Red Card in 02 w/ a 200 limit. About 2 (or three?) years later they took it to a visa w/ a 1k limit. It sat there until Feb of 08 and VOILA, auto-cli to 5k. This past October they auto-cli'd me to 7k.
Sure the IR is nasty, tho the Visa DOES have a luv button -- but I can't complain. I really do like those 10% coupons.