I think it's interesting that someone said they wouldn't want to see quilts with mis-matched seams at a show they paid to attend. I go to the big Pacific International Quilt Festival every year and I have seen GORGEOUS quilts on display there every year, and almost every time, when I get up real close and personal, I can find errors if I look for them. Mismatched seams, slightly clipped points, quilting lines with little bips and bobbles...
I actually LIKE it when I find those subtle little problems. Why? Because my first impression of the quilt was that it was amazing and impressive and in some way unique or very interesting to me - otherwise I wouldn't be studying it so closely. So if a quilt in a huge show that looks that amazing can still contain a few little errors...well, maybe that means my always-imperfect work is better than I thought. It reassures me about my own work, and encourages me to display my work more proudly, and makes me think that perhaps some day I'll be brave enough to enter one of my (imperfect) quilts into a juried show.