It's completely insane. I bought my house in Austin in 2013 for $245k (I thought it was already hilariously overpriced) and last year during Peak Hype a house sold on my street for almost a million.
Speaking as a fellow Texan (though I don't know about Austin specifics), I'd say you're there until you can no longer afford the wealth/property taxes.
Like I guess I'm staying here until I die?