Marketing. It's all about marketing.

After my 390 SP I wondered how they could ever get better, like with all the SPLS's that have etc. I'm still not sure they did. I bought 'em anyway. Still have them, even though I mainly fish bamboo for trout now, for the last decade.

There was post in the "Wanteds" not long ago for a Sage SP390. Since I rarely fish mine anymore I considered it, seriously but couldn't part with it in the final. Same with my SPL's. Nice rods indeed, all of them.

Marketing!