For one thing the media isn't out there like they were a few months back putting out stories that Tesla slashed prices. That media tail has largely died off. For those who followed Tesla, already owned a Tesla, or were considering a 2nd or third Tesla, they knew this was the time to jump in that 1st part of Jan. to get those deals. Those ordering after that were the lucky stragglers. Took me a week to convince my wife or I would probably have had a car by now, but I digress. Another week or two and we would have had to cough up another 1500.00.
It was genius of Tesla to leverage the media in those price reductions and to declare to the other EV makers "this is war". Of course nothing stays in the press for too long, so the story, that while not dead, has lost some of that momentum. This distraction could be an advantage for Tesla to catch up on production, until they throw out the next surprise which I suspect will be updated pricing and changes for the refurbished MY and M3 later in the year. Maybe smaller things like updated colors for Fremont like giga Berlin has. There will be a lag between the times they stop making the current models and retool for the new models. Luckily none of us are stuck in that mess, but we are cutting across Q1 and Q2. I don't think it's realistic of the IRS to make an announcement and expect it to be in place immediately. I could be wrong, but I think this is going to play out over a longer period of time.
Pros to having ordered withing the last few months- A good production process is in place in all factories and for the most opart very good cars are coming off the line. They want to make as many cars as they can before the model changes Cons- We miss out on HW4 and maybe other future options, but probably at an increased future price. When a lower priced Tesla comes out of Mexico, they will really have no reason to slash MY unless they just want more market share.