Having been in a small/medium business consulting realm I have seen many companies go far to long using old technology because "it works". The issue being of course that there is no support from any vendor when something doesn't. Usually my best argument for companies to get off these old systems is that the hardware will certainly fail and spare parts are increasingly difficult to find and expensive.
Its great to have an option of emulation of this sort to allow companies to not have to have the huge burden of being forced to use a modern tool with most likely some considerable amount of downtime due to waiting to the last second. On the flip side of that the hidden long term costs of limping by with old, unsupported software will be even more challenging to present to those with the checkbook.