I'm going to bring up the issue of advertising again (with the understanding of the it's been done many times before and people generally have strong feelings about it). But hear me out.
... It would seem that some degree of limited advertising could help move those cars without the need to drop the price, and would cost a lot less than $1 billion.
Now I understand that undercutting the "competition" has value... .
But this could be another lever that could cost much less than a price reduction..
There are a few misconceptions here, not in the context of opinion differing but in the context of factual comparisons.
First, the assertion that advertising costs less than do other alternatives. Not true!
Second, the notion that 'undercutting the competitions' on price is valuable. That si manifestly untrue when the product and positioning are of a premium product. There are copious proofs of that in the world from clothing to cars and airplanes. Different products in different positions do have different prices, but premium ones diminish value by cheaper prices. (Don't take my word. Look up advanced marketing texts. Conventional wisdom is often in error. Obvious case: Apple vs Android (any brand). Price is a feature, so there are entry models that are cheaper but still premium to competition.
Third, the idea that advertising is cheaper than a price reduction. The very price reduction generates it's own benefits, but only because it is linked to the notion fo wider and speedier availability.
Fourth, the very presence of an ordering process vs easy off-the-shelf access tends to increase perceived desirability.
Fifth, and by far the most important. Tesla shares with very few products the understanding of 21st century buyer behavior. The very fact of internet presence has revolutionized purchasing behavior, with Amazon and Alibaba the most famous instigators.
Tesla generates enormous attention and intentions to buy with packaging issues that attract droves and entirely invisible to non-targets. Games, farts and Easter Eggs are massively influential to their targets, visible to Boomers like me. Tesla also cultivates massive favorable attention by providing access to influencers and promoters while making money from them. A stellar example is US. Cultivating retail investors is an obvious but nearly invisible way to push word-of-mouth. There are numerous other examples, too many to list, but just one proves the point. Tesla establishes large gatherings, invitation only, to sell the public on their manufacturing, packaging and distribution superiority. Tesla makes regular invitation only presentations for new products, technical excellence and innovations. These tend to be positioned as recruiting events, so the language itself is often not understood by most observers. Then there are those periodic owner loyalty program offerings, not often, but often enough to keep owners talking about them even when they are not longer active.
The last paragraph describes a Positioning, Promotion and Pricing process that is strictly 21st century. Placement and Distribution, too, with direct sales only, describe marketing that ould not be done thirty years ago.
When anybody advocates advertising they completely misunderstand the Tesla business model. We may see a bit of traditional advertising if institutional investors become more important. Most of them, like securities analysts, are quite clueless. Some industrial companies do advertising when dealing with politicians, regulators and those investor types, precisely to influence them. That is often seen in the Washington DC area, and other capitols around the world. So far Tesla hasn't needed that, but with octogenarian political leaders some of that may be needed soon.
For sales, no.