Of course to extend the analogy, while the table might need the third or fourth legs added (or perhaps better to say replaced because they don't function perfectly as intended) post purchase (and the replacements are more often than not later provided by the furniture store already made to fix the problems that came up with the original design, and often installed without cost post purchase...one can then take them to a decorator to add the final surface flourishes to fit with the home decor if so desired), without the furniture shop one would instead have to build the table ex nihilo without likely owning any of the precision tools or the material needed to craft one whatsoever.
You should admit though that consumers have a certain right to be ticked after a while. I bought HOI3 shortly after the first or second patch and to date none of the fixes suggested or patches have dealt with the problem I have with the game. So far I get about five minutes in the game and then I get a weird sound like the game is skipping and then CTD every time. everything loads fine and my system has enough memory to run the game and the processor is far more than is required. I've simply given up on it for the forseeable future and I don't know if I will ever buy another Paradox release within the first year of release again. I have pretty faithfully bought the games and dealt with the crap, but until this time even when I was disappointed with the game play I've never felt like I wasted my money. This time I do feel that way.