Rudeboy,

It really is a matter of "What are you trying to achieve?"

If you are only trying to reduce induced drag (reduce the size and power of the tip vortices) then there are many other means of attaining that objective.

Are there other reasons for wanting to adopt a delta planform? If there are then what are they - it will make the selection of other compromises easier.

For example if maneuvarability is not required then winglets become a serious option.

If you are wanting to do highspeed aerobatics, then other options might be used like high aspect ratio.