The same thing is true of remodeling churches. Styles go in and out but the most fool hardy thing to do to an historic structure is to make it reflect a moment in time that is in conflict with its exterior. I follow the Liturgical Arts Journal and its photos of Roman Catholic buildings rescued from poor 1960s-1980s renovations that took away the integrity of the building. Thankfully, they are being restored not necessarily to their former glory but at least to some measure of integrity with the building's overall structure. It is an amazing thing to see and I am happy to see that people are spending the money to do time travel with some of these terrible deconstructions.
Lutherans have done the same terrible job of taking what was once a building with some consistency and destroying it. Some of those congregations have taken up the cause of restoring their buildings (St. James in Indiana comes to mind) but others, populated by frugal Lutherans, are not sure it is worth the money. If you ask me, it is. Beauty in service to the liturgy is one facet of our obedience and devotion, not unlike the expensive ointment lavished upon our Lord. Though some might suggest that this is self-indulgent, it is actually money well spent. The most self-indulgent thing of all is to remodel to fit the moment without care to the integrity of the building.
It is simply impossible for me to believe that the God who specified with such detail the plans for the Ark, the Tent of Meeting, the Tabernacle, and the Temple could now countenance our refusal to invest anything in the cause of beauty in service to His worship and His glory. So I would suggest that we be both careful in our spending but not cheap in the way we treat the buildings that house the worship of God's people and the place where He serves us with His gifts. This is no less true of remodeling efforts.