I've been waiting many years to be the first in line to buy a certain 15" lathe that I adore, so I get it about configuration. If you compare a newGrizzily or whatever lathe at 5K and th TOS lathe, well no contest... Of course you need to get what will make you happy.
BTW, thefirst time I used the 15 incher, I hated it, but over the past 30 years I have grown to love it...