Lucy,
If you were never taught to do wheelers and have never done them it's not too surprising that you fail to see the benefit. Foxmoth is spot on; wheeler landings are a very valuable technique and I believe they are a required part of a t/w pilot's repitoire (I won't sign off difference training without doing wheelers). They are much more comfortable in a strong X wind on some types and will alow you to land in crosswinds which would be impossible (or at least unwise) for a three pointer. remember, "taildraggers" is used as a blanket term but they don't all fly (and land) the same so it's important to have a detailed understanding of what works best on any particular type before you fly it. What types do you fly?
Some of the characteristics an aeroplane exibits during taxying and during landing can be similar so I'd suggest that a full understanding of the possibilities and requirements of how to land your aeroplane might be relevant to taxying too!
3 Point (and wheeler too when required!!)