There are, of course, instances where TLG has released products that were designed to appeal directly to the collector's mindset (e.g., 41999, Mr. Gold), but those have always been outliers. TLG may use collectible, limited, and exclusive routinely in their product names, advertisements, and other marketing materials, but that's just puffery and in no way reflective of their core product strategy. If TLG had ever intended to market their products as collectibles, they wouldn't have been selling them in mainstream toy stores, Target, or Walmart.
Things were different before...whether that difference was "better" or "worse" than the present has a lot to do with the decisions that one made in the intervening years. If someone went all-in on an exclusives-only strategy after seeing the success of Green Grocer, Taj Mahal, and the first MF, that person is almost certainly saying that things are worse because few sets since then have performed as well as the sets of that vintage. Conversely, if someone realized the market's past was not prologue for the future and made the necessary adjustments in strategy, that person doesn't necessarily look at the past as "better." The strategy that I pursue today is fundamentally different than the strategy that I pursued 5-6 years ago, and is far more profitable so I wouldn't say that things were better before by any stretch of the imagination.
The one thing that I can say was objectively "better" in the past was the level of competition. Before the advent of this site and the rise in general awareness of the opportunity that existed for reselling Lego, things were vastly better simply because the market was distorted and not functioning properly. As awareness has grown, the balance between supply and demand has evened out and prices have moderated...this is most noticeable in the vastly different EOL price curves of CC/GG vs. PS/PC. Basically, we're no longer shooting fish in a barrel...now we're actually having to work for dinner.