The conclusion I've reached about speakers

After years of listening to box speakers the conclusion I have come to is that:

All speakers sound the same

A big speaker does more bass and goes lower. A bookshelf gives no bass and cant go as loud. 

Any other differences are either imaginary or DELIBERATELY contrived to make them sound better to the unsuspecting buyer.

The ONLY other differences aside from sound quality are the price and appearance. Prices can vary substantially and so can the way a speaker looks.

In other words, everything we thought about speakers is all wrong.