That might be ok for technical people who are used to this kind of "machine speak", but for end users it's often not acceptable. Consider the difference between

That might be ok for technical people who are used to this kind of "machine speak", but for end users it's often not acceptable. Consider the difference between: Purchased credits: %d. Remaining credits: %d. Buy more : 5 [link] / 10 [link] / 20 [link]. and You have purchased a total of %d credits and have used %d of them so far. You can buy [drowdownlist] additional credits by clicking here [link]. Which one do you think will have the highest conversion rate?