I would say it depends on the people. Some people have to reach out and touch the person or there can be no relationship. Others can be on different sides of the earth from each other and establish a lasting relationship.
BUT you must meet the person at an early stage to make sure you are not building an emotional relationship on false information. It is easy to become emotionally involved without the early, in-person clues that would put brakes on the emotions.
Just crusin by... Hope all is well.. So far as relationships and long distance?? Well... I've never had one.. but I too have difficulty sustaining one for any length of time. Mainly due to improper circumstances and jumping the gun wagon.. But Ima learnin... I think HONESTY is the most important factor... TRUST must be established on an all new level I feel for LDR to work..
Hope thing are going great for you... Let me know if you ever make it to Atlanta! :)