ðə smˈɔːl nˈʌmbɚɹ ʌv pˈʌzəlz, kəmbˈaɪnd wɪð ðˌɛm bˌiːɪŋ lˈɪmɪɾᵻd ᵻdˈɪʃənz, hɐz mˌeɪd ðiːz pˈʌzəlz hˈaɪli kəlˈɛktəbəl.
The small number of puzzles, combined with them being limited editions, has made these puzzles highly collectable.