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Yes but the so called tax you pay also gets you highly corrected eyepieces suitable for a fast Dob and when combined with a Paracorr provide highly corrected views to the edge without eyepiece or mirror aberrations visible (provided the mirror is good too of course). Tele Vue also offer free eyepiece specifications not only to those who pay the 'tax' but to all for you to be able to design or customise your telescope to better suit the eyepieces you intend on using. Newtonians are very adaptable depending on which decisions have already been made, i.e. tube diameter, secondary size, focuser height and even then changes are possible.
There are two issues here; one is to try and get all eyepieces par focal and whilst some manufacturers have eyepieces in their range that are par focal it is also not possible to have all eyepieces from a given manufacturer to be par focal, including Tele Vue. You can get both 1.25" and 2" par focalising rings that sit around the barrel to raise the eyepiece from a few different suppliers. Tele Vue sell barrel extenders for their 2" eyepieces that need a lot of outward travel.
The other issue is choice of focuser. I think mass produced telescopes these days try and cover all bases i.e. visual and photo and whilst this may work well with some designs it also is subject to some compromise. Perhaps the OP should look at a new focuser with a bit more travel if only for visual and positioned such that the focal plane is between the eyepiece with the most in travel and the one with the most outward travel. Many focusers have different length draw tubes to choose from.
The OP could also choose a zero depth 2"-1.25" adaptor for eyepieces that need more in travel and even leave this on the eyepiece and effectively convert the eyepiece to 2". There is also a 2"-1.25" Hi-Hat adaptor for 1.25" eyepieces that require more out travel (and leave it on the eyepiece if desired to convert to 2"). There are many options but yes having eyepieces that are as close to par focal to start with is handy. Note if you do intend on using a Paracorr one day then this too will change the focal plane which will need to be allowed for. It is possible to have a telescope that can use many different eyepieces with and without a Paracorr in place without any change required.
Whatever you choose, enjoy!
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