We built our house also, and i found that there were several "upgrades" that were MUCH cheaper to do afterwards. For example, TV wanted $2000 for under counter lights, I installed my own, 5 years ago, total cost less than $300 and this was for both under and over cabinet LED lights. As for closets, we found that a simple rearrangement (about 3 hours and less than $100) doubled the amount of storage space. Then after living here for over 5 years, some additional tweaks (also less than $100 and a couple of hours) yielded more storage space that was more compatible with what we wanted for storage.
I have already seen a few houses sold with very nice ($$$$) custom closets that the new owners completed removed the nice closet and had their own version installed, so IMHO, these may not be a good investment.
Hope this helps.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
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