I was afraid you'd ask that. First, IMO, there's really no reason to get a more expensive charger. Some total tech-heads may disagree, but I'm not a fanatic about squeezing the last possible millisecond out of my batteries' lifespan.
If you look at graphs of the charging rate, and you analyze the algorithms of the TR-001 as compared to certain models of Xtars or Pilas, those chargers provide a superior charge. If you google Xtar or go directly to the site, you will see some CPF side-by-side reviews, complete with graphs and charts that illustrate this. The last review with data charts I saw was high up on the first page of google search result of "Xtar". CandlePowerForums is chock full of flashlight and battery geeks, so they take all this stuff way too seriously, IMO. But, if you're interested, it's probably the best place on earth to find out the lowdown on batteries and chargers. After all, CPF is where AW (Andy Wang) got his start selling batteries.
BTW, unless you want to get caught up in a hobby that makes vaping expenses seem like childs play, don't wander around too much at CPF. Hear me now or believe me later. Been there, done that.
You are absolutely right, especially about CPF.