Well despite not seeing the point of giving every student a laptop to keep, I don't understand how they're working these numbers. With the term "mini notebook" being used to describe these things, I don't even know why a price of $2250 per laptop was being thrown around. That's extremely excessive for what is probably a "netbook", assuming that they're not giving each student a Sony TT, which is an extremely awesome luxury product....
If there are 197,000 high school students (year 9 to 12, as stated in the article), and each laptop was (most likely) a netbook of some sort, even giving out $1000 netbooks to every single high school student (in NSW) would cost the government $197m.
Then again, they're not even talking about anything THAT ambitious. They're talking about senior year students only, so how can the NSW government not afford it when $4.55 bn dollars is being spent to fund all the states? NSW should get a lot of that, and should have more money than they know what to do with.
Furthermore, this is assuming each one would cost $1000. I'm sure a deal could be worked out where each netbook would cost around $500 AUD. What exactly are they going to give each student? It certainly shouldn't be a gaming rig.
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Personally, I think the government is just **** with money. That's why $1 billion wasn't enough.