I collect Israel until 1980 when the currency switch to the shekel. As a result I managed to find a 1981 Bale catalogue on
ebay for only a few dollars. Not only was it a lot cheaper but it is also a lot more manageable size wise than the current Bale.
My older Bale does have the disadvantage of only being illustrated in black and white, and also the catalogue values are outdated; interestingly the 1981 value are significantly higher than those given by current catalogues. Also, comparing with an acquaintances new Bale, a few stamps have been given different numbers.
Regarding tabs, everything that applies to mint also applies to used. In both cases stamps with tabs command a significant premium.
Also, in case you are not aware, some stamps were issued with a double tab. If the outer tab is missing on stamps that were issued as such, then the stamp is described as having a "half tab" and is again worth significantly less then the same stamp with a "full tab".
Clive