Collectibility is a shot in the dark here but as many have commented the enamel is most likely candidate.
However for owning it is most important to consider why. If for investment there are better things to invest in. If for wearing, then what kind of wear. Daily, occasionally, regularly in rotation, etc... also how it fits in your overall collection.
Personally I have looked at this enamel LF in the past, found it spectacular visually but the case did not work on my wrist. Just my arm that is weird perhaps. Same for the steel LF. The LF that felt most right for me was the square case. The FPJ is a very smart watch, can be passed for dressy and casual in this configuration. It is a great piece. The Patek is gorgeous, have owned this one many years ago but felt it was too grown up back then but today I wish it was was in the drawer... a thing of beauty. Yes the movement is the weakness but then again it does what it is supposed to as a watch otherwise.
Good luck! Go with what you feel the strongest attraction to, always works the best...