Those that ignore history…
So 15 years ago you moved to SAP because the business value of having a single supplier providing standard components and processes was (in theory) a better choice than keeping your legacy ERP.
Than came a painful migración that likely took years, when you discovered that those standard processes were not complete enough to run your business and spent a fortune customizing SAP so that you could run your business in it.
Now the very same vendor that promised these benefits without delivering any says again the same thing, but this time with SAP/HANA. Only this time is not providing anyone automatic migration from their own product version to their new product version. Think about it, it is like Microsoft telling you that to use the new Excel version you need to type by hand again all your spreadsheets from the old version.
Fool me once….