We all have our different preferences in things, however, prefab stretcher frames come in all sorts of makes. It comes down to the supplier you choose. So yes you can find big fat stretcher frames (more sturdy) to your liking.

As I said, personal preferences, and some of us like having our hands in every step of process to create our artworks, and others, reach for something off the shelf. It really comes down to knowing your materials and your desired outcome.

I personally purchase prefab stretchers, but purchase my own canvas and stretch it, as the commercially finished canvases use a material that is not fine enough to my liking. However, if chose to pay more money, then of course I could find commercial canvases using a finer weave.