Thumb for B21 - What do you guys suggest?

[BruceWard]

I am considering the Bro-Tek but I am not sure if it is available for the B21 / BT751. What else is available? Are there any less expensive hydraulic options?

 

[BruceWard]

The Bro-Tek for the B21 is $390 shipped. What do you think about it versus these two hydraulic units

$765 shipped
AMULET Hydraulic Mini-Excavator Thumb (Mdl ST01-2) NEW! - eBay (item 130266714246 end time Nov-10-08 11:18:37 PST)

or

$725 shipped
Heavy Duty 8" x 28" Hydraulic Thumb for Mini Excavator - eBay (item 130266061376 end time Nov-07-08 12:14:41 PST)