well, (assuming the box isn't just a gimmick...) it's just an equivalent of (roughly) 170 work hours, about a month of mastering, so to say...

given it can do the same job twice as fast, it pays off after 2 months...
cheers, Tom
formula: subtract 1 fifth for VAT, from the remaining subtract 1 third for tax balance effects, leaves you at about 10k Euro, a humble 60 Euro for the engineer... (to leave some space for own calculations...)
