Converters dynamic range

[Heartfelt]

Here is a list after researching:

Alesis AI3 96db
Digi001 96db
Behringer ADA8000 103/108db
Digi 002 105db
Apogee Minime 105
Mackie 400F 107
Presonus Firebox 107db
Presonus Firestudio 107/110db
Digi 003 110db
RME FF400 110db
Alesis IO14/26 112db
Audiofire 2-4 112/114db
Audiofire 8-12 113/114db
Lucid AD 115db
Lucid DA 114db
RME FF800 116db
RME ADI-2 116db
Apogee PSX100 116

Granted this isnt all in the low-mid range but it is a handful, for sure. I read posts here stating tht the dynamic range does not dictate the quality of the converter. However, looking at this list, it seems the units costing more, generally have a higher DR spec. There are a few exceptions but to this untrained fellow, it seems the DR is indicative of the place in the market and/or quality.

Can anyone explain the true impact it has on a unit?

Again, pls note I mentioned exceptions and I am sure that I or a website was off in on one or another... no claims to perfection, just noting a trend.