I'd go one further to say that the POS (or whatever pricing system used at the front counter) is probably more important to the business than a chopper, underpinner, or cmc.
Frames can be ordered chopped, or even joined at first (at a higher price) - to buy some time. You may have a local distributor, as we do, that offers CMC cuts for a modest fee.
But... if you're leaving money on the counter by under charging customers, over charging customers so they dont come back, or spending extra time to do the calculations manually - it could hurt the business.
Then again, there's a 32,000sf (120 year old?) shop right down the road from us that still uses clip boards to manually calculate their prices - and they do well.
There are so many variables to accurately calculate the price, that it seems like a lot of work to scan through books to get the prices for every estimate. With a POS the prices get updated weekly in your computer, as they come through from the manufacturer. It also tracks new mouldings/mats as well as what has been recently discontinued.
I'm a computer guy, so this is just my opinion. If I were a customer, I'd have more confidence in the price estimate knowing it came from a computer - and might be less likely to haggle with the sales person.
Mike