Hingeless albums come with mounts. I would suggest that you write the various makers and ask for a sample album page and literature. Then after you have an idea what you want, shop for price. There is a drawback to most of the hingeless albums and that is they are pretty much limited in scope to the major number stamps. If you are collecting lots of stuff that is only listed in the Scott US Specialized Catalog, then you will have to go with the National and buy lots of mounts.
Worldwide collectors have other problems to face when it comes time to upgrade.
The first option is to go with the Scott International album. This album is so big that it seems like it will fill 20 feet of shelf space. It does not have spaces for all major varieties, but it does have a lot of them. Another alternative is to buy specialty albums. You can do this piece meal as certain countries in your old album overflow.