I'd be happy to do that.Can you articulate the meaningful difference between what would make the game better versus what would make it sell better...?
I fail to see the distinction, when people will buy a game if it makes them happy, so designing for making most users happy should sell more.
This comes down to the DM Experience. DMs may not purchase the most books when compared to all players combined, but they are an integral part to delivering a quality play experience. So DM support would make the game better, but wouldn't maximize profit (like, say, selling new skins on your VTT avatar might).
The DM Experience in 5e is bad. The DMG is frequently cited as one of the worst books for the edition. There are numerous threads, videos, and articles about the DM Shortage. WotC would have addressed this if they actually cared about the quality of D&D.
The DMG encounter guidelines don't work. The CR system doesn't work. The DMG provides little helpful advice to DMs. It's a worthless book that should've been revised YEARS ago while DMs have struggled through this mess of a system.
But, let's forget the DMG (most people do anyway), and move to other tools. What should WotC be offering for FREE to aid the DMs who basically are doing volunteer work for WotC to keep people playing their game?
- Free Encounter Calculator to help us plan battles by plugging in the monsters from the sources we own
- Free Treasure reward calculator
- Free indices and guides to all of our books (of course, we should have to purchase our books - I only want a database with a page number)
- Tools such as Initiative trackers
- Online character builder that can export to PDF
- Good quality DM Screens with the charts we actually use on them.
- Short adventures that don't take a year to run, which we can purchase individually or at least download.
- PDFs that we can search, print out handouts, etc.
- Errata that improves the game as needed to repair obviously broken rules and underpowered options
- Optional rules that recognize some tables prefer tactical depth - that actually work with the system. (Something like Tome of Battle, Skills & Powers, etc., would've given 5e more "legs")