Hi Bill! I think I can see the evolution of this question, based on your reply in another
thread and I must say that, generally speaking, I heartily agree with you.

First, to answer your questions about DS:
1) I have ordered from U.S. Direct Service many times, though not at all in the last few years.
2) My orders were usually for replacement parts that were missing from new sets. These were always supplied quickly and absolutely free. One time I had an advent calendar with several problems: a deformed set of angel wings, and two missing pieces (I forgot now what they were) and it was right before Dec. 1. The parts arrived by first class mail within a few days so that I was able to sneak them into the correct boxes on the advent calendar in plenty of time. I think the person I spoke to must have handled it personally in order to get the parts to me so fast. DS is usually very busy at the holidays and I would not call at that time of year except for this sort of "emergency." Other than for missing parts, I have placed a few orders for extras. One example: a bunch of skeletons, pirate hats, and rusty swords to make ghost pirates.
3) Order totals were in the $30 - $50 range
4) Zero per year now, maybe 2 per year in the past but I would have ordered more if it were easier to do and the process were more like it is for ordering sets.
I have always placed my orders by phone, so I have rarely had out-of-stock situations when the order arrives. Also, my orders were relatively small so therefore easy to place by phone.
To get to the larger issue, I agree with you Bill that it would be a good business decision for Geobra as well as a great thing for Playmo lovers if parts ordering were handled more like a real online business rather than merely a customer service. Besides offering replacement parts and add-ons, offering discontinued lines such as Steck, electric trains, etc. could make them a lot of money as there are so many folks who would like to add to what they have in these lines but now must rely on sources like ebay which do not make any money for Geobra. By offering these lines, Geobra would not be competing with their brick-and-mortar retailers and they would be making a higher profit margin through direct sales and saving costs through less packaging and direct shipping. Just my