This is bullshiite. It's used to be that way, but not anymore. The more credit available you have, the better. I have 40 credit cards and my credit score kicks butt.
The only concern with this is some institutions will be leary lending money if your available unused credit is too high and your income could not support the use of 40 credit cards
what I mean is someone with 40 credit cards that each has a $1000 limit has the ability to spend $40000 but if they make $10000(this will be an issue)...this can affect obtaining a loan for a house etc...the numbers are used as illustration
I agree if you have a good credit rating and other CC etc...you do not need to keep this open
Credit score is not simply the fact you have credit but how you handle that credit, what the balances on the CC, payment histories for loans, mortgage, rent etc and your income
Personally I try to keep just a few CC..Visa, discover, amex...a few others...if you will not use close it out...
Dell will give a another in the future if needed
there is always risk of CC fraud etc