They may not be high for long. I find the MSRPs for the average sigs (i.e. not mastershop/x-series models) are usually more than what they ultimately retail for and can command.
The 10mm's came down to reality (at least in the us).
The stainless elites usually keep going up in price at retail shops at least. Last year they were 1400 at cabelas and now places are selling them as high as $1525. Best bet would be to just hold out for a year and get one with 20 thru it for $1000