Samick Sage or, if you have a longer draw, the Samick Journey.
I agree about replacing the string--a good string really wakes it up.
As far as value, it will bring the same percentage as pretty much any used bow--50% - 75% of retail. For the price, why sell it? If you move on, keep it around to get someone else started, for bowfishing, for a spare, etc.
Best part of the value equation is you get a warranty. Any bow can fail, whether it be a $1,500 custom or a Sage at less than $150. Stuff happens.
I don't see them ever being collectable, but for the money you can't beat it. Warranty, HMPE ("high performance") string capable, all the inserts you'll ever need for a quiver, bowfishing reel, even a cushion plunger if you wanted. Can be shot from the shelf or elevated rest. Extra limbs are cheap, so you can have a few different draw weights on hand if you want without breaking the bank.
Put an 18-20 strand BCY-X string on it and you'll be amazed--the only limitation is the variable pulling the string. I keep buying one to play with, but someone winds up getting it and I have to get myself another. Thinking about shooting at the Pre-Spring Arrow Fling witih my latest one...just got to make time to make a string for it...