oztrack: You have experience of this?
the daydreams? ya, all day everyday.and i dont even have a relationship now..
I have actually done a LD relationship. Not easy since relationships require (to me) some consistent RL interaction, which inclines one (well, me again) in an LDR to think there is a need to move earlier than is required than when we both live in the same city or vacinity.
Planning is important as Trace notes, because the general wisdom of moving into the city where that person is, with consideration for financial implications, generally results in moving in together, which can be, not always mind you, a risky step, pushing the limits of a 'normal' relationship discovery period, where one normally goes home to their own place more often. LD'Rs negate that ability, the sense of 'my place' and the ability to be alone once in a while to digest what is going on, or to just ease into a relationship rather than go through the immediate change.
For some that may be inconsequential I suppose and I am a proponent of finding out as soon as possible if things will work; but those first days, and months, are somewhat more pressured when normal interaction is "sped up" by the necessity of moving in together.
It works for some. I am just saying I think its more difficult, unless you're prepared for getting your feet real wet all at once and having no where to go and dry them off as normal, in the vacinity, relationships permit.
On the other hand some folks need and want to be in that situation, want to be drowned in the other person, warts and all, so ...for me, I guess it is a personal decision in all ways.
All relationships have pitfalls and challenges.