CA knows who butters their bread. They almost certainly will never publish a cigar that they truly feel is lower than an 80. You just never know who your next best advertiser ($$$) will be or come from. They lost a LOT of any hint of credibility when they gave the Casa Magna the number one spot in 2008. It is rumored that spot was basically bought.
I like the numerical system for many of the reasons many have already stated. Sometimes, this particular PSD4 is just a 91, where the one before it was a 90. I can quickly say just that and get my point across without have to say, "Well this one is just slightly better than yesterdays' but they are both really good, but yesterdays just didn't hit me as well as todays......" and on and on, without really saying much of all.
You might console yourself Vann with giving the terms you relate to best, average, above average, etc. with different ranges. For example, a cigar rating between 85-89 is above average, 90+ is great/exceptional, or whatnot.
I really wish I had more income for cigars so that I could support FOH as I appreciate the integrity and and transparency of Rob and staff in an industry that is known with deceit and corruption.