Some very valid points there mate.
I used to go to the US record hunting 3-4 times a year from the mid 80's through to the late 90's but eventually ebay and price guides ruined it.
There have always been those who can afford to buy whatever they want (not always with their own money ), but those of us who dug deep, trawled through 100's of 1000's of records for hours on end could always get good pieces for our collections. But nowadays if and when we do, the dealer or store owner just logs onto the web and "that'll be $1000 please sir" soon follows.
I'm sure that there are those among the collecting fraternity who can and do buy everything they want, do love the music just as much, but it's not just the mega rarities that make a collection is it? The £5/£10/£20 sounds are what make the backbone of a collection IMO