Two New Tomatoes

I'm wondering now what is an acceptable number of hours to put into seed selection?  Ten?  Twenty?  Four thousand nine hundred and seven?
The good news is, I have chosen two varieties of tomato seed.  The bad news is, I'm now questioning my decision to order from Seed Savers exclusively.  Baker Creek not only has online customer reviews for some products- which are very helpful- but also may be more affordable...
Both companies offer these two varieties of tomato, so I feel confident in publicly announcing at least this much:
(Drum roll?)
This summer, in addition to Green Grape, Cherokee Purple, and Gold Medal tomatoes, for which I have hopefully managed to save some viable seeds myself, I will be ordering

BLACK FROM TULA!

An indeterminate 80 day Russian Heirloom, Black From Tula has been described as having a rich, full, old fashioned, sweet and spicy flavor.  Excellent review here.  Available from both BCHS and SSE.  I can't wait to taste one!  And

NYAGOUS!

A funny name for a funny looking tomato, this one is also indeterminate 75 - 80 days, and also an heirloom from Russia.  The Nyagous has been described as sweet, meaty, rich, and very productive.  Sounds good to me!  Find it at BCHS or SSE.
I will now devote a few more hours (days?) to making the final decisions on other veggies, as well as doing the math in order to choose which supplier -  maybe both? 
All this hard work and still six months away from tasting one?!  *sigh*  I'd rather be weeding...