Microsoft certifications are worth the money… but there is certainly money involved. You are paying USD$165.00 to sit an exam, whether you pass or fail.
Some time ago, Microsoft started offering Second Shot vouchers. As long as you pre-registered for it, you would get the chance to re-sit an exam in the event that you did not pass. They were a great way to encourage candidates to try, and if they failed, they would be able to take the exam again at no extra cost.
The last time I wrote about these vouchers was nearly 6 years ago. I do not know if they have come up since, but I don’t think I have taken advantage in a long time.
There is now a program called Microsoft Exam Replay. This is not a free offer from Microsoft, rather it is like buying an insurance program up front. Instead of purchasing the exam outright, you purchase an exam voucher + retake from MindHub. The cost? USD$230, or USD$65.00 more than the cost of the exam. In other words, it is a bad investment if your confidence level is high… but if you are really uncertain, it may be worth your while to look into it.
Reading the on-line reviews, there is no consensus. It seems they are like olives… you either love it or hate it. I am not planning to take any exams in the near future, so I will not be trying them out. However, if you are concerned, then better safe than sorry.