I have conflicting thoughts about your post. Lafreniere, Stutzle, Dach prices have a lot of premiums built into their prices already. Top 3 picks tend to have premiums built into their card prices. NYR and CHI are big markets. Can Kirby Dach improve? Sure- he could become a 1C in the next 5 years.. But his YG also hit the market at like $15 USD... and now they're worth ~$30 USD. So they've already gone up despite Dach doing nothing special since the product dropped.
I was buying Jason Robertson ygs last year for $1-2 each, sometimes less in bulk. I could've bought 150 Jason Robertson ygs or 15 Dach young guns. I moved all my Jason Robertson cards for between $30 and $40 per card Did I get lucky? Absolutely. If I wanted to realize those same profits with say a Dach rookie, they would have to be $450++ and we all know how unlikely this is. You could spread your money out on 5-10 of your favourite cheap rookies every year and you just need to hit on one of them. There's minimal risk involved in this because young guns rarely dip below $0.30-0.50.
Ultimate RC Autographs are hard signed, more limited than a future watch autograph (/99, /299, or /399, I believe), and consistently sell for less than the /999 FWA.
Think about it.