Are there specific model numbers ? How do you tell if the apogee has the new sensor ?
Anyways (BTW if I remember correctly there seems to have been a LARGE increase in prices BUT ???)
it would depend if you want a "stand alone" device or hook it to say a Windows or MAC-x laptop.
Bulkreef supply generally runs a Nov. sale on these..
If you were going "all in" I'd suggest the even newer one
Really not necessary for LEd's since there is generally little out before 400nm and past 700nm.