Along with mostly free eSword bible software, I also use Logos bible software, which has a reputation for being over-priced. There are ways around that though. Called “pre-publication”, you are allowed to “bid” on what you would pay for a product before it comes out for official purchase.
I’m here to say this method of purchasing from Logos can pay off. My evidence is the Cambridge Greek New Testament for Schools and Colleges, just released officially for over $240. I pre-purchased this particular collection after examining previews, and received it last night for a TENTH of the retail price.
Can’t beat that with a stick.
So if you want to buy Logos books, (and they have many excellent reference works) my suggestion is pre-pub, along with their regular sales, which are advertised or touted about on the social media. There are bargains to be had!