Implant dentistry is a great addition to your revenue stream if you plan to do it regularly.
Firstly, implants kits and motors/CBCT are what we refer to in business as sunk costs - something that you spend money on once, can amortize over time, and thus is not considered in the cost of doing business.
Second, most implant companies will give you the kit for free and significantly cut the price of the motor if you buy 30+ implants from the get go. You can, of course, then exchange the implants for the exact sizes you need, case by case.
Third, I use Straumann exclusively (I'm a GP) and I manage to get a great discount, with even BLX costing less than $300 with free cover screws and healing abutments because I bulk order. I place about an average of 30 implants / month (range of 10-50). I charge $ 325 for CBCT (have it in house together w/ Trios), $700 for surgical guide and $1700-2500 per implant (depends on in-network vs UCR). Guides run about $300. So, my total revenue per implant placement is $2725 at it's lowest. Guided implant placement into an edentulous site takes about 15 min. We can safely book 30 min appointments for most cases.
Four, single implant placement can lead to more advanced cases, like all-on-$$$.
So, as you can see, if done correctly, implants are pretty awesome.