There was a time when some fantastic images were made and probably still are being made, be it wide angle or macro with older model strobes be it Inon's or sea and sea or Ikelite's. I do agree that there are some new strobes out there that surpass the older ones in power, light distribution and colour rendition as also battery life. I have been using one brand lately that can give me up to 4 dives without a battery change, but i would rather still stick with my older Inons. I am not trying to change the tone or content of this thread, but do believe that in the correct hands, most would do the job except in conditions with pelagics where power and fast recharge would be most helpful.
Sorry just my two bits. And yes had i the budget would jump at buying the retras.
Diggy