I usually treat anything that isn't open source, or a product that makes multiple billions of dollars and is totally entrenched in industry, as basically dispos

I usually treat anything that isn't open source, or a product that makes multiple billions of dollars and is totally entrenched in industry, as basically disposable. I will use it, especially if it's free/youretheproductware, if it's convenient, but I don't want to build anything on top of it. I don't want to create anything with it that can't be ported elsewhere. With open source it's a lot more comfortable to say "This appears to be popular and will be around for a long time, I don't need to start thinking about alternatives". Occasionally in some areas it's helpful to keep alternatives in mind in case something better comes along, but some things are already near universal.