You are very right Jeroen, if you are starting out a friendly local store can be very helpfull, and they do a far better job a developing your pictures
However: The Internet especially has increased the available price information, and transparency of the market immensely. You can't blame people for buying their equipment at the lowest price available, can you. Maybe it is a bit immoral to try at a local store and buy somewhere else, but sadly for those stores that is how a market works nowadays, you can take advantage of 2 types of stores when making a purchase.
Local shops still have a future though......plenty of reasons to still go there, there's just no market for so many of them, especially with the supermarkets also competing. Just here in Hoofddorp, a relatively small town there are dozens of photoshops....the market is maybe a bit too saturated nowadays for so many local shops to still be around
Same has happened with local grocery stores, sure they were friendlier and offered higher quality, but apparently that's not what the majority in this country wants......
Ok, I'm getting wayyyyy off topic I realize