I agree. It's a question of marketing, and if the company thinks that it can attract people with a free offer and expect to convert them to paying customers via

I agree. It's a question of marketing, and if the company thinks that it can attract people with a free offer and expect to convert them to paying customers via non-free add ons, then that's their call. If it turns out they've massively over-estimated the value of their add-ons, and they don't get the conversions they have justified the free offer with, then that's again their mistake. I think we also have to discuss the elephant in the room, that these businesses are layered on top of free software, so they are effectively reselling (and attempting to profit from) something that is free, so it's unsurprising that people's expectations when considering using open source software is that they don't need to pay for it.