Early modern: SI/metric system
Modern: Planck units
Post Modern: ???
My initial point is that the Army doesn't officially sanction any commercial games for use as a training tool. We have plenty of programs that use proprietary "games" (if you want to call them that) and the inclusion of something like America's Army (a recruiting tool, not a training tool) is ludicrous, wishful thinking on behalf of the slashdot readership.
There was even talk of modified (non-commercial) software which you completely ignored. You could have at least set the record straight with a more detailed post than "No they don't."
Since you have been making personal responses, maybe you will reply to this: Are not some of the proprietary software the basis for commercial software (or vice versa)? And if so, which commercial software are related (Op. Flashpoint, ArmA, ArmA2, AA, Arctic Fox, etc.)?
Unfortunately, replacing the black and color ink cartridges costs $81.92 + tax at the local store! That so bad that I got a replacement printer that's just as good and spare ink for less.
Many other people brought this up, but if you read the OP you should notice that they did get replacement cartridges in addition to a printer. Assuming old-printer-replacement cartridge and new-printer-replacement cartridge can print the same amount, then they were clearly taking the less expensive route.
Why failures at reading comprehension are awarded Informative and Insightful is beyond me...
Understanding is always the understanding of a smaller problem in relation to a bigger problem. -- P.D. Ouspensky