It is absolutely worth the price. I go on several retreats a year and always take my Sew-ezi. It is light weight and very portable. I can sew full speed on my Bernina 440QE and the table doesn't shake or wobble. I have different inserts for my various machines, so it is very versatile.
Ultimately, you have to decide on what your primary use would be. Do you want to be able to take the table with you to retreats, etc. or are you looking for something that would stay in your home?