just out of curiosity, with all the problems Lionel has with quality control WHY DO YOU ALL KEEP BUYING IT ???
I can't speak for others, but for me, it is because often isn't a choice if i want a particular loco, and I've found I can repair about 80% of the loco problems I get myself. So I take the chance.
In the case of the A5s, even though MTH makes a very nice A5, I ended up with four Lionel A5s because I bought three back when Lionel didn't seem to have the quality problems it does now, and I bought the recent UP Greyhound LC+ loco because I wanted another LC+ A5.
A better example is a pre-order I have for the PC+ Lionmaster Big Boy. I had an excellent one that I wore about four years ago - it was my favorite steamer ever but ten years of running just reduced it to where I didn't think it could be repaired any more - everything was lose and worn. I could by MTH's semi-scale Big Boy - but I owned one in the past and the lionmaster was just a better-looking and running loco.
So I really wanted the LC+ Lionmaster Big Boy - my favorite loco with my favorite train control system. Its fairly expensive, and I consider it a risk that it will have something annoyingly wrong, or worse, with it, but I will take the chance.
Except for the price point, this seems to me to actually be identical in approach to what you do often, and I do occasionally, when we buy an old used loco on ebay or at a swap meet. We know it may have "issues," - in fact it is almost certain to, but we want it anyway and are confident we can fix it most of the time, and take the risk that we may not be able to because it is small.