I'll have a go!!
1) I agree there's nothing wrong with 'maybe' or 'might' etc. these words of vagueness can be very useful get out of jail free cards.
However, the shows are scheduled days in advance so of course they know whether the product will be back or not, it is, therefore, a blatant lie to say things like 'I don't know if you'll see this again, or whether it'll be at this price'.
2) I also agree with you that it's a good idea to research products you want to buy.
However, I would suggest that most purchases from Bid are impulse buys with no time for research. Therefore, we rely on the presenter telling us the truth like carat weights, gold weight and purity, even handbag size is important. So all most of us ask is truth, clarity and transparency.
Oh, and as a qualified healthcare professional, I wouldn't recommend anyone have a go at open heart surgery after doing research, it usually take many more years of practical training than that!!
Well, I can certainly understand your point of view...I don't agree with it, but I can sympathise with it. Buyers in the UK have enough protection under the distant selling regulations to be able to buy first and research later - we are some of the most protected consumers in the world when it comes pressure selling too. The protection of consumers from unfair business practices act 2008 (I think that's the year) expands these rights to the point that its incredible we even have any shops still trading in this country!
Don't worry, I will resist the temptation to do open heart surgery. I do however have a nice new pair of pliers so might have a bash at dentistry...