Model Steam Railways

Having bought both new and used Hornby stuff, I can definitely say that I have never met with a more frustrating load of crap in my entire life. They may be highly detailed models but they certainly don't work in their own limited enironment. I have two brand new loco's who's only object in life is to leap off the track. They are both made in China.
I have acquired four very, very old tank loco's, made in GB, who have no desire to leave the track but are occasionally chucked off by the poor quality Hornby points that came with my VSOE set. Even the Clan Class in the set has trouble going over points.
I have three brand new British Pullman cars that only leap for freedom when I am not looking,
I have seven eBay sourced cars that fall over only if they are expected to move. I did have eight but the wheels fell off one of them.
I even bought brand new track from Hornby but they contrived to rob me of the most expensive item by mixing the parts in a confusing manner