i am not against picking at all - but as you say IT IS ONLY FOR EXPERIENCED PEOPLE WITH SUFFICIENT KNOWLEDGE.
i will say it again - it is a lot safer to grow your own.
by the way - i wouldn't say it is a hard work to grow shrooms, unless you count waiting as hard work because there is a lot of that
first about 15-20 mins work when innoculating the substrate - if you bought ready sterilised kit as i do to save time you have just save yourself few hours of work
then you wait until mycelium colonises your substrate (depending on type/size 2 to 6 weeks aprox) - no work at all just waiting
then move the substrate to your fruiting chamber - 30 mins tops
now the hard bit - make sure you spray your fruiting chamber with water few times a day and ventilate to replace the air few times a day and watch them grow - no hard work at all (you can invest in ultrasonic humidifier and a PC fan on timer as i did - then last bit is just waiting and watching
no lamps or heavy electricity bills or hard work - just pleasure of watching them grow
if you have done it right after few flushes dry your shrooms and voilla - you have just grown enough to last you for a year - unless of course you have few shroom hungry mates
then just start another farm