[Datenstrom]

I don't know if they are still running the deal but Nvidia was offering $500 off the Titan RTXs if you sign up for their developer program.

Edit:

Note that they can't be used with multi-gpu builds because they (purposefully) do not have a blower configuration. Unless you can source 2080ti blowers which have the same layout or do a water cooling build it will cause thermal throttling.