Exactly -- that will be your resonse to the client when the "new fantastic .NET solutions" needs fixes. When their product won't ship on time, because there are fixes that haven't been released. And then when the fixes break other things, as MS's fixes are known to do . . .
This cavalier attitude is *exactly* the kind of salesman that I think should be shunned industry-wide.
If you sell them a broken solution that needs fixing, like .NET, then it is *your* fault, *your* responsibility. Any money, time, effort they lose is because *you* misrepresented your product.
Are you telling them up front to expect product fixes? No. You're telling them it's ready for production.
Dude, that's fraud.