I did a BOM when I was a newbie and learned a lot! Had no stash, so it was a good way to see if I liked quilting. Did another later because I like it. As a BOM it would have been about $350 plus shipping! So I searched on-line and found the whole kit in one go for $150. The fabrics were beautiful and it was a sampler type. I could not have assembled those fabrics, etc. for that price without going to 50 different shops or all over the net!
Again, I learned a lot of different techniques, etc. Don't regret it. Always check for the pattern through Google!!