I'm pretty stoked, I just got a nice new desktop for my home with an Intel i7 7700K CPU @ 4.20 GHz (I could easily overclock it to 4.5 GHz- 4.7 GHz+), with a SSD and three 2TB HDDs. It's got a heavy lifting graphics card (no integrated garbage), and I just bought a third monitor for it. I got it all for under $1,000. Mac doesn't even have a computer on the market as powerful as this computer, yet they sell computers north of $2K. It's a joke to me, PCs just have so much better value.
I seem to have an experience contrary to most of yours. I was a huge apple fan boy- until my apple laptop (valued at nearly $2k) broke. I replaced it with a HP. Great decision, I love this computer (I got it for roughly $450). It has a latest gen i5 CPU, an SSD, and I replaced the optical drive with a 2TB HDD to use as a secondary drive. Not only that, it has all the ports that apple takes off their computer and requires you to buy a dongle for. Another frustrating thing, is that many of Mac's computers actually come shipped with hybrid SSD/HDD drives (this is especially true with their desktops), being much slower than full SSDs. So I get great performance with my HP for less than half the price of what I would have got with a Mac. To me its a no brainer, and most dental software runs on Windows anyway, so might as well get familiar with the OS.