Personally i think that if the Flash does really well,and the book gets a boost,it will rise quite a bit..at one time is was "THE Silver-age book"...it may have its day again,especially when you factor in its age,scarcity(half as many as 22 with only 126 CGC Blue SC4's),and importance....
I just feel the upside is limited due to the high price already. For instance, if SC4 6.0 is $7000-8000 and has a 30-50% jump, it will be $9100-12000. Now, if SC22 6.0 reaches $7000-8000 (+30-50%) and AF15 reaches $16000-18000 (+15-20% slower growth), the chances for SC4 to reach there is possible. SC4 is currently worth more than SC22 grade by grade, up till 8.0. I agree, SC4 is scarce, but imagine if SC22 is as scarce as SC4...I bet the price will more than SC4 grade by grade. SC4 may have more potential than I think. Nonetheless, the market will dictate the direction.
Nice SIG LINE!!!! OM GL books!!!! I love SC4 - Fantastic cover. I'm glad I don't collect the Flash or I would be broke.
Thanks 007. (thumbs u I like your SC 43 9.0... great book and hard to find in 9.0. I have the Northland 8.5 SC43, which I'll have it scan next time. I'm still considering to add a SC4 to my collection, but collecting interest does change for me time to time.