From what I've read, there are only 2 major brands available.
The CC brand get the nod. But, lots of guys badmouth those also.
Cliff has posted that the main problem with 'em are the grooved rocker balls. These seem to reduce lubrication under the balls. He has recommended switching to regular balls & sorta "lapping" them in. Don't think that's the word he used. Can't remember the exact wording. Can probably find what he said with a search.
Others here recommend going with full alum roller rockers. Or if you have the budget for 'em, there are Crower Stainless full roller rockers.
Many here have badmouthed all PRW rockers.
My bracket engine has CC roller tips. I won't be running it very much at a time. And, I'll probably have the valve covers off quite frequently, at which time I give each rocker a squirt. Don't think I'll have any problems with 'em.
I assume that bigger cams with higher valve spring pressures would put more stress on rockers. So, reasonable HFT cams with reasonable spring pressures should be easier on the rockers, whereas a big roller with high spring pressures might REQUIRE good full roller rockers.
So, your question about an "economical" roller tip might be answered like this. PRW has the cheapest initial price. CC roller tips are supposed to be of better quality. BUT, if either of these rockers fail, that might make a good quality full roller rocker more "economical" in the long run.
You now have to consider both shipping charges AND tax, when finding the best price. There is at least one Amazon seller & one Ebay seller which shows aprox $130 shipped, with no tax, for the PRW rockers.
https://www.amazon.com/PRW-0845501-S.../dp/B004L2OWP2
https://www.ebay.com/itm/PRW-Industr...823ef4b04aded9
From what I can find, the CC 1451-16 roller tips are now over $150 shipped. AND, they do NOT come with poly-lock adjusting nuts. They come with both 3/8 & 7/16 Chevy type nuts. So, if you go with those, you'll have to add the cost of poly-lock nuts.
https://www.ebay.com/itm/COMP-Cams-R...UAAOSw6dtduK1s
Scorpion alum rockers are around $300. Best price I can find right now is $276 shipped, with no tax.
https://www.ebay.com/itm/Scorpion-SC...gAAOSw9GVby5Qq
There are lots of cheap Chinese rockers, if you wanna chance 'em.