I agree that it is harder to make those last few steps but that doesn't make tottenham's job harder or more worthy of merit. It is much harder to develop a promising kid into a potentially world class footballer than to develop a potentially world class footballer into a world class footballer. We grew bale's potential no end, tottenham realised it but so would have any other club.
No footballer is just a left-back, don't let fairly meaningless labels obscure the reality that bale was an extremely talented footballer when he left southampton.
I really don't want to get into a debate that includes the term "world class". It's a nebulous term that means different things to different people. However, I will say there are dozens (if not hundreds) of highly talented, very promising 17-year-old footballers around the world and very few (if any) of them will go on to be bought for £80m.
The bolded part of your post is total speculation. You simply can't know that. The fact is that Spurs have developed Bale into the player he is. They deserve credit for that, they do not deserve to be dismissed with "Well anyone could have done it".
You also can't dismiss a player's position as a meaningless label. Newcastle missed out on signing Alan Shearer as a kid because they'd only seen him play in goal, we missed Kevin Phillips because he played right back. The position a player plays in is vital. When Bale left Southampton he was seen as a promising left back, not as the next Cristiano Ronaldo.
And? He was a very good player for us but he played left-back in virtually every game he played for us. He played most of his early games for Spurs at left-back. He was a left-back. Clubs do not pay £80m-plus for left-backs. Real Madrid are prepared to pay that money because he is not a left-back any more. Spurs have changed his position. They deserve credit for that. We do not.
See above post. and to add, he made his debut for Spuds as a left midfielder ...
I agree with all of your post except the last sentence. I remember watching Bale as a marauding LB who played like a winger, so in essence, a little like he plays now and if I really stretch it.. a little Ronaldoesque.
See above post. and to add, he made his debut for Spuds as a left midfielder ...

Was watching this video last night (Bale's top 10 goals 2013) and it still amazes me how good he has got. His goal against us is in there.