100%. DFW big game ticket market is such a winners town and massively impacted by momentum. Best example of this was game 5 of the ALCS last year after we had lost 2 straight. Still 2-2 and a huge game and I took a massive loss selling my extras. In 2011, I recall having like $900 in cash for game 3 of the finals (after winning game 2 in Miami) and my wife and I couldn't sniff even terrible seats so watched at a bar. Then, for game 4 (after losing game 3) we bought center court uppers in the 2nd row for like $350 each. I had already gotten lucky with a great lower single from the presale for game 5 (which was before the Mavs figured out they should be charging "market" and not "face" value.
Where this ticket market lands is 100% dependent on how prior games go. I think market dips a bit regardless for first 2 home games. The only sure thing for an absolutely insane ticket market would be Mavs having a chance to clinch at home.