I think there should be a relation because I applied for a Discover Platinum two years ago and was approved for the minimum limit (5K). I think I had two or three inquiries at that time. Recently, I applied for the Bank of America Gold Card. Bofa gave me a Platinum card with a line of 7,500. Bofa's minimum line for Gold and Platinum is 5,000. I think I had only one inquiry at the time of application. My income and residence didn't change since I applied for Discover and Bofa, but my FICO score must have increased because of aging accounts and inquires that have dropped out. So, I guess the score does contribute to what limit you get. Any thoughts???