Welcome Kevin,
I use a crb on my commercial job and based on results/ time spent you'll find your hourly rate go up. I use a Whittaker, very durable and minimal down time. Very low cost to maintain. I like their chems and have also used peroxcellent and some others. If you do buy the chems from Whittaker, I would suggest the 5-gallon cube of CDX (cleans 250,000 sq/ft) for about $185.00 + shipping. If you buy by the case it's about $125.00/ case. So in this example you save at least $50.00p/case. The brushes will last for millions of square feet of use. I would suggest both the green and blue brushes.
Most crb's that we see out there are made by the same OEM in Austria and pricing is usually pretty consistent, but are distributed in the states under a variety of different brand names. I will say that customer service and specifically the service department are great. I've had more than a few minor situations where instead of packing it in for the day & back to the shop, they were able to get me going in short time.