That has always been true - not just from the days of Pong, but from the days of Pinball and Pachinko. It's not quite true these games are the equivalent of a bar scam - it's possible to genuinely enjoy a game for its own sake - but addictive rewards and behavioural reinforcements have been around a lot longer than computing has.
The reality is that commercial experience games - where the goal is trigger the imagination and guide the player to a rich experience - are much rarer than commercial extraction games, where the goal is to create addictive engagement and spending patterns which can be monetised.
This isn't nearly as true for tangible commercial board games, especially those that promote strategic and imaginative thinking. You can get started in chess with a chess board and a rule book. You do not have to keep spending money on nicer-looking pieces, and your board will not be monetised with pop-up ads. (Chess sites may be, but chess kept developing for hundreds of years without them.)
D&D and more obscure games like Carcassone are similar. You can spend extra on expansion packs, but even if you buy everything the expansion space is small and bounded. The physical costs of board game dev and distribution keep that true.
Electronic games have a virtually infinite potential expansion space, so the economics are drastically different. The temptation to turn every last thing into a monetisation engine is hard to avoid - to the extent that monetisation design has become a meta-game in its own right.