Boomer, How much work your FEL can do depends on the tractor. I don't know how powerful yours is. My small Kioti LB1914 does not have a very powerful FEL, unfortunately. It can't dig except into loose material, and it can barely break loose a load of piled up pit run, without backing up while curling and lifting the bucket. Teeth won't help much - it's lift power that is lacking.
For this reason I bought a 2' bucket (about $250 as I recall - in addition to the 1') for my Kioti backhoe which runs off a PTO pump and is very powerful by comparison. That bucket has been a godsend. It can move a lot of material fast. I dig with it, break up any material to load, then turn around and load it. I easily raked up 6 or 8 loads of pit run for a road bed out of the dry creek bottom yesterday (lots of good-sized rock), and was able to fully load the FEL (with a few groans from the relief valves).
My only complaint is that because the tractor is small and boom reach short, I have to reposition fairly often, when using the hoe.
If I had a backhoe on a tractor of any size, I would get a bigger bucket every time: I don't want teeth on my loader, as I often have to back-drag the driveway, and they won't solve many problems for me anyway. I have used the big hoe bucket to scrape off top soil and layers of dead brush, prepping the road bed, and it does that very effectively: drag it into a heap and then use the loader to push it where I want.
I recently saw a project here to add a claw to the loader - probably would do most things a grapple would - nothing to change out to use it, and probably a lot cheaper. But my backhoe will pick up a lot of things the bucket won't, often by pinching (say) a big log between the teeth and the boom: then I can carry the object where I want.
So pick your attachments according to your needs and to the capabilities of the tractor.
Crank