Irvine Welsh, the author of Trainspotting, is expressing his disappointment over the cancellation of the musical's UK tour, citing financial constraints as the primary reason. Welsh's comments at the Edinburgh International Book Festival reveal a complex situation where the show's success in London is directly tied to its high production costs and the economic climate. The musical, despite receiving positive reviews and standing ovations, faces challenges in touring due to the high costs of accommodation, travel, and staging. Welsh highlights the stark contrast between London and the rest of the UK, where working-class audiences are less likely to pay the £100 ticket price, making it financially unviable to tour outside the capital. This situation reflects a broader trend in the theatre industry, where the economic power of audiences has shifted, leading to a focus on low-cost, regional productions and a potential decline in the viability of large-scale tours. The musical's future remains uncertain, with Welsh expressing hope for a return when economic conditions improve.