over the years i have had several buggy buddy travel board books (none of the cloth ones). they have all been cute books that were well loved by the girls.the only downfall has been that over time they have been chewed on during teething sessions (or general baby reasons for chewing..) or had drinks spilled and the liquids do basically destroy them over time as the paper get ruined or the binding breaks and pages break off.
they are quite affordable here though so i did not look at them as part of our book collection, but rather as a baby/toddler toy that woudl eventually go. actually my almost 3 yo is currently using the plastic attachment part (it is easy to take off the book BTW) as a "fishing rod" as she acts out an episode of Dora so i guess it is still being used
if you can get the cloth ones and they are machine or sponge cleanable then i woudl definitely opt for those knowing they woudl last longer.