Bale was bought off the back of 3 very good seasons - the last one which he made the kind of impact Suarez did in his last season mate though - 26 as a winger was something that everyone noticed, he was also very much on the radar from the moment he tore inter a new one a few seasons earlier in the CL as well - as i said proving he could do it on the very biggest stage in that game alone.
Rodriguez was arguably the best player of the world cup and also won the golden boot mate - THAT is the biggest stage you can perform on and to just say it as one world cup is underplaying how massive his profile became in that tournament.
Suarez was head and shoulders by a mile the best player in the league and nearly single handedly won the league for a bang average Liverpool side mate, he had also performed exceptionally for Uruguay for years on the biggest state.
As for how he did in Europa - yes it would have been noted by people he shared it with Alan of Salzburg (he was bought after by a chinese team at the age of 26), previous two winners Soriano of Salzburg (at 28 and he stayed at Sazburg) and Kozak of Lazio (sold the season after to Villa for 4m at 24) - so i don't actually think the big clubs are paying too much attention to Europa league top goalscorers frankly mate - especially when 5 of those goals came against young boys and that really puts it into perspective.
As for the transfer merry go round that would see Lukaku move on - these are things that poften get said will happen and almost never ever do, papers love them ofc as do people who have played a lot of FM etc - not saying you do btw before you tear my head off
Realistically people seem to forget just how much we paid for Lukaku - their is not many sides that will be able to afford the fee we would undoubtedly stick on his head - conservatively we'd be asking for 55-60m + based purely on similar type deals and the mark up that those players had on their initial fees paid