My wife and I completed our post-graduation studies in the UK in 2013 and since then we've visited the UK almost every year to catch up with friends and be in London for a couple of days to relive the times.
Now, as a result, we already have 1 student visa and 3 visitor visas (6 months each) for the UK. We are contemplating applying for a long-term visa (like 5 or 10 years) for convenience.
We have to travel to another city where VFS is located every time just to get a visa. The only concern is the huge amount that we need to pay without assurance, So would it be advisable to go for a long-term visa?