That was a single example and an extreme example
Lets use this one then 12' 2-4oz Loomis Spin with Shimano Aerlex Grinder, 30lbs braid over 40lbs mono backing total cost, under R2k
This would be compared to 12' 2-4oz casting with SL30 or TLD 15/30 with 0.45mm Mono.
Now apples with Apples. 0.47mm mono equates to 30lbs braid. The braid however can cast much further especially in the hands of a recreational fisherman.
The advantages of sensitivity of the extreme, low diameter for protection against side wash ability to cast lighter terminal tackle etc makes for great fishing fun.
Now to use my own scratchin setup as an example. I use my 1-4oz Carp Rod (Oval DC)with my Shimano 10'000 Baitrunner for which I have 4 spools that I pack in.
1. 20lbs HMP x 600m on one rod. Been on for 4 years now and I fish it for Catfish, Kob, Garrick, Shad Bluefish etc, etc. Still as good as new after 4 years.
1 x 40lbs Fireline 300yds been on the reel for 9 years now.
1 x 0.30mm Mono for general rock fishing
1 x 0.45mm Mono for Kelp beds etc etc.
I carry 1 rod with 1 reel but 4 spools so I can Spin, beach fish at long range, drift bait with light baits, float fish, Reef fish either Baitfishing or Lurefishing all with 1 setup with anything from 3/4oz-4oz plus small bait. The same rod and rele is used for freshwater Carp and Catfish fishing
In my books an extremely versatile and affordable option and only a 1 x investment in Braid and Fireline average 5 years and still going strong.
Braid for Multiplier fishing should not be under 0.40mm so essentially, 65-80lbs and not for long range fishing.
Braid must always be wet before long casting as it's flash point is way LOWER than Mono...... Power casts with to thin and to dry braid leads to fiber damage and melting significantly reducing it's lifespan and to have the same versatility that I have with my 1 x setup you need to carry 1 rod with 4 reels.