I have a 7070 and in it I have the IS gold page. There is a notable difference in quality with the IS page being thinner and the slides being thinner as well, but it certainly does the trick. There are other options out there like Whitman blue, Whitman bookshelf, Littleton, Library of Coins, and all of them have their upsides and downsides. I'm partial to the Dansco brand and quality.
I've seen a small coin shop carrying the 7070 and doing so for normal price (~$35), which could be worth calling around.
There is an old topic on here of a user comparing the 7070 and IS album
http://goccf.com/t/242296)To quote GR58 directly from that topic:
Quote:
My thoughts on the two albums.
I like them both.
Dansco, seems to be a little better quality.
The pages are a little more heavy duty
and the slide are a little thicker.
Also, I think the coins fit a little better.
Intercept Shield, Nothing wrong with how it looks.
I like the extra coins they have added. The slip
cover does get dinged easier than the Dansco slip
cover. Right now the IS album is easier to purchase
than the Dansco.
As far as which would preserve the coins better,
this is my second 7070, some of these coins have been
in a Dansco for over 30 years, with no problem.
My guess would be the IS will do as well.