Funny - I’ve been saying the same thing. I have an older two-axle steam locomotive from LGB that has a circus train theme to it which I purchased on eBay. When I went to the train store recently, I noticed a differently colored version of the same locomotive in a starter set with more features so I bought that starter set. Theoretically, the same loco albeit with different color schemes.
Nope. The newer locomotive uses plastic drive rods which really look like plastic and cheap plastic at that. With my old locomotive, I can easily pull my track cleaning car around my ceiling layout with no problem - the new one can’t because it’s lighter. The old locomotive has a solid, quality feel all over but the new one has a clear emphasis dictated by the accounting department, not the engineering department.
These two are a primary example of why LGB went broke and had to be bought my Marklin - poor quality that doesn’t inspire repeat purchases.