The CWNP Question of the Day (QOTD)

When using proprietary or non-standard solutions, risks increase of your systems not interoperating with other standards-based systems now or in the future. Also, because you are basing your solution on a single vendor, you are dependent upon that vendor for future systems that may only interoperate with your current solution, 'locking' you into that vendor. Vendors often make business decisions to discontinue support for a particular solution or technology. If you are using a non-standard solution, the ability to find support from someone other than the original vendor may be difficult and expensive, forcing you to change your solution completely.
Because the market is typically larger for standards based solutions, known vulnerabilities will generally be discovered (and patched) more quickly for them. Proprietary solutions can be just as secure or more so than standards-based solutions, and additional training may or may not be required.