I recently started a new campaign. Two players (one who has played in my games before and their SO, who has been begging me for a spot for years) unexpectedly dropped out, moments before our first session. Their reason was somewhat baffling; they said they didn't want to spend "all day" on this, despite the game only going from noon to 3PM. They seemed to think this was a totally unreasonable expectation on my part, despite them previously having stated they were available during that time. This puzzled me.
I've been musing on this, and the strange paradox of people that say they want to play D&D but don't actually want to play D&D, and I've had an epiphany.
A lot of people blame Critical Role or other popular D&D shows for giving prospective players misplaced perceptions, often related to things like your DM's voice acting ability or prop budget, but I don't think that's what's going on here. My realization is that, encoded in the medium of podcasts and play videos, is another expectation: New players unconsciously expect to receive D&D the way they receive D&D shows: on-demand, at their house, able to be paused and restarted at their whim, and possibly on a second-screen while they focus on something else!
I don't know as this suggests anything we as DMs could do differently to set expectations, but it did go a long ways to helping me understand my friends, and I thought it might help someone here to share.
Battlemaps are good if you're going for a swashbuckling or strongly tactical feel. I like to say 'your players can't swing from the chandelier if they don't know there's a chandelier.'
Battlemaps are great for a certain aesthetic (in the the game design sense of the word) because they allow you to add things for players to improv with without explicitly enumerating a static set of options. If you draw the inside of a tavern, when the tavern brawl breaks out they may do something that surprises you; "Can I throw the bottles at him/flip over the table/dive behind the houseplant/throw him out the window/etc" Whereas theatre of the mind requires your player to either intuit that there would be a bottle on the table that they could throw, or you to explicitly say "and there's a bottle on the table in front of you." And if you tell them there's something in front of them, they will laser focus on it and never even think to flip the table/dive behind the houseplant/etc.
Theatre of the mind is good for games that put the emphasis elsewhere. If the focus of your game is on entrigue, or courtly drama, or in a setting that's highly improvised, that's when theatre of the mind shines.