Good luck to you. If you need a good contractor, I will be happy to refer one.
I find that with the fabulous weather we have in Austin TX there's not much need for a bathtub however, people with little ones do appreciate them.
Just like others have mentioned, the walk-in luxury shower with multiple heads is the way to go for the master!
Good luck with your remodel!
Vox Real Estate
GRI, CRS, ABR, CLHMS, e-Pro
Joe Jarusinsky, Realtor/Master Instructor, Keller Williams Realty, Austin's #1 Real Estate Company, Ranked #1 by Buyers and Sellers (JD Power & Assoc. 2012)
Keep at least one bathtub in the home as any future owners with young children will want to use it to bathe them. Some dog owners also appreciate it.
Best wishes on your remodel!
Prudential Connecticut Realty
When it comes time to sell, if you do a good job with the master bathroom you should be fine. You will have some to say, they want a tub. The majority will like the big walk-in shower.
Merry Ann Cutler