Ok, I am somewhat new to photography (about 8 months), but have taken a few thousand photos already. I feel like I am starting to figure this stuff out. I want to print my photos out, mostly 8x10's for my family and friends, and have been having a heck of a time doing it. I have researched the different color settings, calibrated my monitor, edited my photos, and spent quite a bit of money thowing photos away that were printed by Costco. It took me awhile to discover that for me I was having problems with Aperture only uploading the previews to online sites and Costco, so my prints came back rather drab and dark. I have since switch over to Lightroom, which I am starting to figure a little bit out...I had a pretty good grasp on Aperture, even spent 3 hours on the phone with the techs at NIK software helping me to figure out that it was indeed just the previews that were being uploaded to Costco. Anyway, long story short...my prints stink from Costco. Yesterday I had 8 8x10's that had a white line running down all of my prints, rather than go back and spend 30 minutes inline arguing for $10 in prints, I sent some to a different Costco, and have discovered that my 8x10's look nothing like my 4x6's. They are WAY darker, and have what appears to be dust marks on the photos, again in the same spot on every photo but the 4x6's. So my questions are, is there a reason why the 8x10's are so much darker than the 4x6's? Is it due to the cropping? If so, I can just order 8x12's and then just cut them myself. HOWEVER, I am leary of spending another $1 let alone $20 per small group of 8x10's I need.
My next question is, would I be better off buying a printer and printing myself at home? I do realize that it costs quite a bit or a lot more, but it's not like I am going to be printing out hundreds of photos a month. I may only do about 1-200 a year. I would like to think I would have more control over how they are printed, and could work through the process just one photo at a time instead of sending 30 to Costco. If so, what would be a decent not super expensive printer to buy and operate (ink) and how about paper?
Last but not least, should I just find another online printer to do the work, and if so, and experiences? Sorry for the long post but I am just trying to vent a little, and would say that I am starting to really love photography, but this whole printing thing is starting to wear on me after trying to get it straight for the past 6 months.....Thanks in advance...

