I disliked the verification process with the LA after I signed up so I didn't complete it. I'm sure they have problems with some bad apples and can kind of understand why they were being that way, but I wound up getting turned off.
I signed up for ebay after that and bought some seeds from judydu2 (I believe she's on the LA too) and she was great to deal with--friendly, quick, included nice bonus seeds, and shipping was cheap to Canada--she not only combined the shipping for my wins, but automatically reduced it further because the actual shipping was a little cheaper than what she had quoted. I was brand new to ebay and was a bit intimidated by it (feeling like the last person on earth with internet that hadn't used it!), but it all went so smoothly and was a great experience.
I've only purchased plants directly from growers/hybridizers.