Interesting points guys and one which i too had to come to terms with for my collection. Throughout my first year of collecting i noticed that i'd unintentionally begun to vary my collections due to so many awesome looking pieces...for example my aim was to stick with mainly collecting PF's and Maquettes due to them having a fantastically proportioned size with good weight and the added bonus of mixed media to give it that museum quality....but i found myself drawn to the incredible details and superb likenesses of certain 1/6 HT figures, notably the Christopher Reeves Superman figure and the Keaton 1989 Batman to mention a few. So from having 1/4 statues and 1/6 scale figures i then began to turn my attention to 1:1 busts and then came my Iron Man 1:2 LSF and before i knew it my collection was spiralling out of control. I'm glad to say that before Christmas i totally cleaned out my collection and have regained control of all the pieces i wanted for keeps and those which were impulse buys and therefore wished to let go. Its worked out fantastically for me as all the funds i have made from selling off over 8 or 9 PF's and various other peices will now go towards paying off my pre orders which is such a relief as i do have quite a bit. The point im trying to make is that there are just so many fantastic pieces in all various kind of scales that are just so appealing to each and every one of us and sometimes the fascination of having everything our hearts desire is just too much to take and we always cave in...i know i do!
However, i believe there is space for all different sized scales in any one collection. Its just a case of getting the display correct as for me personally i dont feel that 1/4 scale pieces do not display great next to say a 1/6 figure but thats just me. I'd rather keep my displays together in relation to its scale so i'd have all my 1/6 stuff or 1/4 stuff or 1:1 busts kept separate from each other...but i do believe its good to have diversity in your collections. I think for those who are torn between 1/6 and 1/4 you can now get some amazing 1/4 figures which could be even classed as a PF in some cases, as Sarv knows by his latest purchases of the Bats and Joker 1/4 figures and the new T-800 Battle Damaged Figure by Enterbay, these new figures have the best of both worlds with amazing likeness and posability plus having the 1/4 size! You cant lose imo