I made a Dear Jane quilt - took me 2 years - all hand quilted. I used fabric from JoAnn (not expensive material)and muslin for the background and the back. I had it appraised and the appraiser put a value on it of $2,650.00.
Of course, I could not sell it for that but that is the appraised value for the material and time I spent. She even took into consideration the time it took to shop for all the material! Hope this helps. Don't underestimate your work.