Disadvantages of a money market account

There isn't much of a difference on the depositor's end between savings and MMA deposit. On the bank's end, the bank is allowed more options to invest your money when it is in a MMA - thus, rates/benefits are usually higher to make an MMA more lucrative. Both are FDIC Insured, so again, there isn't much of a difference to the depositor.

Quote from executivedealer : I have not seen any great benefits with Ally's MMA, other than the ability to write checks. In a way, I see that more of a disadvantage than advantage, that's why you have a checking account; to write checks, pay bills, etc. Ally's MMA has no minimum balance, withdrawal fees, but does have a maximum of 6 withdrawals per month which I like to think of as a good 'advantage; it keeps you less likely to be tempted to take money out of your savings AKA MMA. The aforementioned only applies to Ally's MMA.

The "great benefit" is the .95% interest that it gives. Sure it's not much, but it's .95 percentage points more than my checking account (note it's an infinite percent better, I hate when people misuse percent and percentage points) I will be able to work almost exclusively out of the MMA, and keep almost no money in my checking account. You claim that you see the ability to write checks as a disadvantage, are you serious? I'm not going to blow through savings just because it's easily accessible, that's downright stupid. Arguments based on temptation are only valid for those who can't manage money.