mine is pretty low too compared to my other cc.
but i don't mind since I use it to track my everyday purchases which usually consist of a drink, pastry, lunch and maybe dinner..so yeah lots of food.
I also splurge every now and then, I just used it to buy this
and discover shop offered 5%--ebates, which I normally use, gave 0% (I think it is because of the 25% off promo)
i'm going to soon purchase again, an ipad, and discover offers again 5% versus ebates which fluctuates between 1-3%
recently they gave me an auto increase on CL, i'm hoping that that doesn't pull my credit for (haven't checked yet) because i don't really need an increase..
it's a good card really if you pay it off every month and don't spend on big ticketed items consistently.