This is indeed the most enjoyable thread I read so far.
I am really a newbie to orchids having never understood or liked them until one was given to me as a gift. I felt obligated to care for it and I began to love it and wish for more, More, MORE orchids but I do not have the space at all. I nearly killed my first one as I had no idea about anything but thanks to such good information and advice on this forum, my Phal is now recovering. Having nearly killed all flowers, leafs and roots on this one I was impulsive and bought another phal in flower at that time. I learned from this purchase experience that I prefer large flowers.
I am very much limited by space and growing conditions so having more orchids would be a struggle therefore I try to not buy. When I'll have more space (new accommodation) my criteria would be:
1. I would chose one more Phal for now as that is the only orchid I know anything about. Maybe a yellow one as I have a white and purple so far. But in time I will be willing to try other types preferably bright coloured ones to create a good contrast with my white décor.
2. I would look at the roots and leafs first as I do not want to start with a sick plant. I would not go for plants that are poted in anything but clear pots.
3. Preferably a plant that shows signs of growing new roots from the base of the crown so I can repot in Semi-Hydro any time soon. I can't be bothered with bark or anything else any more - had too many problems.
4. As an impulsive buy, if I see a plant that is reduced just because the flower spike is broken but roots are healthy, or the flower spike is only growing but no flowers yet I would probably buy it as the potential of the plant looks good and it's cheap.
I recognise though that buying cheap orchids is demotivating on the long run as you feel you pay more for accessories or to cure a disease / other problem than you paid for the orchid. Also it makes it easier to give up on the plant if it has a problem. On the other hand it is better to practice on NOID plants than to kill a rare expensive one. NOID orchids are only for a time.
I try to tame the "wow" or "what pretty" effect but not sure how long I can keep this up