If you are happy with the machine there is no reason to buy a new one. However, if the SSD is completely gone, I'm not sure how you will get the key needed to reinstall Windows. Hopefully, you made a recovery USB or have a complete system backup. They used to put the Windows key on stickers on the machines but that was long ago. Still buying both Windows and a new SSD is a lot cheaper than a new machine. BTW, how exactly did the SSD fail (SSDs don't "crash". That's a mechanical term that applies to hard drives).