Reasonably priced rubbers: most of the Xiom Vega range, Fastarc series, Rakza 7 and Z. Maybe controversially, I think Butterfly rubbers are reasonably priced, in the sense that there isn't quite any other rubbers which have both the same performance + durability.
Yinhe is also good value. They have similar durability issues as a lot of ESN rubbers, but they cost 1/3rd of the price.
I'd rather buy a Dignics rubber that stays at the same performance or 6+ months and declines gradually, than to buy something at 60% of the cost which comes factory boosted and is an entirely different rubber after 2 months.
In terms of blades, Andro and Butterfly seem to be consistently good quality. Some other brands seem to have questionable QC but charge the same premium. I'd rather buy something from Yinhe or DHS at half the price (or less) than buy from some other brands.