Great info Ken! A lot of our members prefer to go to shows to pick out their own plants. I do both. Some online sellers send fabulous plants (Andy's and SBOE in the US) but you have to get to know them. I was happy with the plants I got from Paramount and at least one has bloomed since I bought them late last summer.
Since my Leptotes bicolor is a consistent bloomer, I just bought a Leptotes Pohli-Tinoco.